schrodinger.tasks.tasks module

A task represents a block of work that has a defined input and output and runs without user intervention. Different task classes share a common external API but have different implementations for defining and executing the work, such as blocking calls, threads, subprocesses, or job control (see jobtasks).

To define a task, follow these basic instructions:

1. Choose a task class to subclass. The choice of task class is primarily dictated by how the task needs to run - thread, subprocess, job, etc. See the Task Class Selection Guide for help.

2. Override the input and output params. The task.input and task.output params may be of any Param type, including CompoundParam (typical). For CompoundParams, either use an existing class to override task.input, OR define a nested class named Input within the task. Doing so will automatically override task.input. The same goes for task.output. Example:

class FooTask(tasks.ThreadFunctionTask):
    input = AtomPair()  # AtomPair is an existing CompoundParam subclass

    # This will magically override FooTask.output = Output()
    class Output(parameters.CompoundParam):
        charge: float
        processed_atom_pair: AtomPair

3. Define the work of the task. This is done differently for different task classes, but generally involves overriding a method to either provide python logic directly as the work to be done or to construct a command line with the appropriate arguments that will be invoked via the appropriate mechanism for the task type.

Once a task is defined, it can be instantiated, set up, and started:

task = FooThreadTask()
task.input.x = 3
task.input.y = 4
task.start()
assert task.status is tasks.Status.RUNNING
task.wait()
assert task.status is tasks.Status.DONE
print(task.output)

Warning

wait() executes a local event loop, so it should not be called directly from a GUI - see PANEL-18317 for discussion. wait() is safe to call inside a subprocess or job (e.g. if a jobtask spawns child tasks). Run git grep "task[.]wait(" to see safe examples annotated with “# OK”.

Pre/postprocessors

Tasks support pre/post processing functions. These can either be methods in the class that are decorated with the preprocessor or postprocessor decorators, or external functions that are added to a task instance. Example:

class MyTask(tasks.BlockingFunctionTask):
    @tasks.preprocessor
    def checkInput(self):
        if self.input.x <0:
            return False, 'x must be a nonnegative number.'

For more information, see the module-level preprocessor and postprocessor decorators as well as the start(), preprocessors(), and addPreprocessor() methods of AbstractTask.

Task directory (taskdir)

Tasks have a concept of a taskdir. While the task framework will never actually chdir into a different directory, the task provides functions for specifying and accessing a directory that is considered that task’s directory by convention. Subprocesses started by the task will use the taskdir as their working directory.

To specify a taskdir, override AbstractTask.DEFAULT_TASKDIR_SETTING or use task.specifyTaskDir(). Example:

class MyTask(tasks.BlockingFunctionTask):
    DEFAULT_TASKDIR_SETTING = tasks.AUTO_TASKDIR

task = MyTask()
task.specifyTaskDir('foo_dir')

The taskdir is created during preprocessing. Once the taskdir is created, use task.getTaskDir() and task.getTaskFilename() when reading and writing files for the task. Example:

class MyTask(tasks.SubprocessCmdTask):
    @tasks.preprocessor(order=tasks.AFTER_TASKDIR)
    def writeInputFiles(self):
        with open(self.getTaskFilename('foo_data.txt'), 'w') as f:
            f.write(self.input.foo_data)

For more details on taskdir, see task.specifyTaskDir() task.getTaskDir().

Input/Output File Handling

To specify a task input file or folder, use the TaskFile or TaskFolder classes as a subparam on the task.input param. If the task runs its unit of work on a different machine or process, the input files/folders will automatically be copied to the right location on the compute host. The path to the TaskFile/TaskFolder will also be updated so it points to the right location, regardless of when or where it’s accessed.

TaskFile/TaskFolder`s may be nested under the input param in supported container types. Supported container types are: There are few restrictions on how nested you can define your `TaskFile/TaskFolder on the input param. For example, if you have a variable number of input files, you can define the input with a list:

- List
- Dict
- Set
- Tuple
- CompoundParam

For example:

class Input(parameters.CompoundParam):
    receptor_filename: TaskFile
    ligand_filenames: List[TaskFile]

Task output files/folders behave in the exact same way as task input files/folders except they’re defined as TaskFile or TaskFolder on the output param.

exception schrodinger.tasks.tasks.TaskDirNotFoundError

Bases: RuntimeError

__init__(*args, **kwargs)
args
with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

class schrodinger.tasks.tasks.ResourceType(value)

Bases: enum.Enum

LOCAL encompasses resources that are stored locally. STATIC encompasses shared resources e.g. those on a shared file system.

LOCAL = 1
STATIC = 2
class schrodinger.tasks.tasks.TaskFile(value='', *args, **kwargs)

Bases: schrodinger.tasks.tasks._TaskResource

See the “Input/Output File Handling” section of the module docstring for information.

LOCAL = 1
STATIC = 2
__contains__(key, /)

Return key in self.

__init__(path='', resource_type=ResourceType.LOCAL)
__len__()

Return len(self).

capitalize()

Return a capitalized version of the string.

More specifically, make the first character have upper case and the rest lower case.

casefold()

Return a version of the string suitable for caseless comparisons.

center(width, fillchar=' ', /)

Return a centered string of length width.

Padding is done using the specified fill character (default is a space).

count(sub[, start[, end]]) → int

Return the number of non-overlapping occurrences of substring sub in string S[start:end]. Optional arguments start and end are interpreted as in slice notation.

encode(encoding='utf-8', errors='strict')

Encode the string using the codec registered for encoding.

encoding

The encoding in which to encode the string.

errors

The error handling scheme to use for encoding errors. The default is ‘strict’ meaning that encoding errors raise a UnicodeEncodeError. Other possible values are ‘ignore’, ‘replace’ and ‘xmlcharrefreplace’ as well as any other name registered with codecs.register_error that can handle UnicodeEncodeErrors.

endswith(suffix[, start[, end]]) → bool

Return True if S ends with the specified suffix, False otherwise. With optional start, test S beginning at that position. With optional end, stop comparing S at that position. suffix can also be a tuple of strings to try.

expandtabs(tabsize=8)

Return a copy where all tab characters are expanded using spaces.

If tabsize is not given, a tab size of 8 characters is assumed.

find(sub[, start[, end]]) → int

Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.

Return -1 on failure.

format(*args, **kwargs) → str

Return a formatted version of S, using substitutions from args and kwargs. The substitutions are identified by braces (‘{’ and ‘}’).

format_map(mapping) → str

Return a formatted version of S, using substitutions from mapping. The substitutions are identified by braces (‘{’ and ‘}’).

classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonImplementation(json_obj)

Abstract method that must be defined by all derived classes. Takes in a dictionary and constructs an instance of the derived class.

Parameters

json_dict (dict) – A dictionary loaded from a JSON string or file.

Returns

An instance of the derived class.

Return type

cls

get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

index(sub[, start[, end]]) → int

Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.

Raises ValueError when the substring is not found.

isalnum()

Return True if the string is an alpha-numeric string, False otherwise.

A string is alpha-numeric if all characters in the string are alpha-numeric and there is at least one character in the string.

isalpha()

Return True if the string is an alphabetic string, False otherwise.

A string is alphabetic if all characters in the string are alphabetic and there is at least one character in the string.

isascii()

Return True if all characters in the string are ASCII, False otherwise.

ASCII characters have code points in the range U+0000-U+007F. Empty string is ASCII too.

isdecimal()

Return True if the string is a decimal string, False otherwise.

A string is a decimal string if all characters in the string are decimal and there is at least one character in the string.

isdigit()

Return True if the string is a digit string, False otherwise.

A string is a digit string if all characters in the string are digits and there is at least one character in the string.

isidentifier()

Return True if the string is a valid Python identifier, False otherwise.

Call keyword.iskeyword(s) to test whether string s is a reserved identifier, such as “def” or “class”.

islower()

Return True if the string is a lowercase string, False otherwise.

A string is lowercase if all cased characters in the string are lowercase and there is at least one cased character in the string.

isnumeric()

Return True if the string is a numeric string, False otherwise.

A string is numeric if all characters in the string are numeric and there is at least one character in the string.

isprintable()

Return True if the string is printable, False otherwise.

A string is printable if all of its characters are considered printable in repr() or if it is empty.

isspace()

Return True if the string is a whitespace string, False otherwise.

A string is whitespace if all characters in the string are whitespace and there is at least one character in the string.

istitle()

Return True if the string is a title-cased string, False otherwise.

In a title-cased string, upper- and title-case characters may only follow uncased characters and lowercase characters only cased ones.

isupper()

Return True if the string is an uppercase string, False otherwise.

A string is uppercase if all cased characters in the string are uppercase and there is at least one cased character in the string.

join(iterable, /)

Concatenate any number of strings.

The string whose method is called is inserted in between each given string. The result is returned as a new string.

Example: ‘.’.join([‘ab’, ‘pq’, ‘rs’]) -> ‘ab.pq.rs’

ljust(width, fillchar=' ', /)

Return a left-justified string of length width.

Padding is done using the specified fill character (default is a space).

lower()

Return a copy of the string converted to lowercase.

lstrip(chars=None, /)

Return a copy of the string with leading whitespace removed.

If chars is given and not None, remove characters in chars instead.

static maketrans()

Return a translation table usable for str.translate().

If there is only one argument, it must be a dictionary mapping Unicode ordinals (integers) or characters to Unicode ordinals, strings or None. Character keys will be then converted to ordinals. If there are two arguments, they must be strings of equal length, and in the resulting dictionary, each character in x will be mapped to the character at the same position in y. If there is a third argument, it must be a string, whose characters will be mapped to None in the result.

partition(sep, /)

Partition the string into three parts using the given separator.

This will search for the separator in the string. If the separator is found, returns a 3-tuple containing the part before the separator, the separator itself, and the part after it.

If the separator is not found, returns a 3-tuple containing the original string and two empty strings.

replace(old, new, count=- 1, /)

Return a copy with all occurrences of substring old replaced by new.

count

Maximum number of occurrences to replace. -1 (the default value) means replace all occurrences.

If the optional argument count is given, only the first count occurrences are replaced.

rfind(sub[, start[, end]]) → int

Return the highest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.

Return -1 on failure.

rindex(sub[, start[, end]]) → int

Return the highest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.

Raises ValueError when the substring is not found.

rjust(width, fillchar=' ', /)

Return a right-justified string of length width.

Padding is done using the specified fill character (default is a space).

rpartition(sep, /)

Partition the string into three parts using the given separator.

This will search for the separator in the string, starting at the end. If the separator is found, returns a 3-tuple containing the part before the separator, the separator itself, and the part after it.

If the separator is not found, returns a 3-tuple containing two empty strings and the original string.

rsplit(sep=None, maxsplit=- 1)

Return a list of the words in the string, using sep as the delimiter string.

sep

The delimiter according which to split the string. None (the default value) means split according to any whitespace, and discard empty strings from the result.

maxsplit

Maximum number of splits to do. -1 (the default value) means no limit.

Splits are done starting at the end of the string and working to the front.

rstrip(chars=None, /)

Return a copy of the string with trailing whitespace removed.

If chars is given and not None, remove characters in chars instead.

split(sep=None, maxsplit=- 1)

Return a list of the words in the string, using sep as the delimiter string.

sep

The delimiter according which to split the string. None (the default value) means split according to any whitespace, and discard empty strings from the result.

maxsplit

Maximum number of splits to do. -1 (the default value) means no limit.

splitlines(keepends=False)

Return a list of the lines in the string, breaking at line boundaries.

Line breaks are not included in the resulting list unless keepends is given and true.

startswith(prefix[, start[, end]]) → bool

Return True if S starts with the specified prefix, False otherwise. With optional start, test S beginning at that position. With optional end, stop comparing S at that position. prefix can also be a tuple of strings to try.

strip(chars=None, /)

Return a copy of the string with leading and trailing whitespace removed.

If chars is given and not None, remove characters in chars instead.

swapcase()

Convert uppercase characters to lowercase and lowercase characters to uppercase.

title()

Return a version of the string where each word is titlecased.

More specifically, words start with uppercased characters and all remaining cased characters have lower case.

toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Abstract method that must be defined by all derived classes. Converts an instance of the derived class into a jsonifiable object.

Returns

A dict made up of JSON native datatypes or Jsonable objects. See the link below for a table of such types. https://docs.python.org/2/library/json.html#encoders-and-decoders

translate(table, /)

Replace each character in the string using the given translation table.

table

Translation table, which must be a mapping of Unicode ordinals to Unicode ordinals, strings, or None.

The table must implement lookup/indexing via __getitem__, for instance a dictionary or list. If this operation raises LookupError, the character is left untouched. Characters mapped to None are deleted.

upper()

Return a copy of the string converted to uppercase.

zfill(width, /)

Pad a numeric string with zeros on the left, to fill a field of the given width.

The string is never truncated.

class schrodinger.tasks.tasks.TaskFolder(value='', *args, **kwargs)

Bases: schrodinger.tasks.tasks._TaskResource

See the “Input/Output File Handling” section of the module docstring for information.

LOCAL = 1
STATIC = 2
__contains__(key, /)

Return key in self.

__init__(path='', resource_type=ResourceType.LOCAL)
__len__()

Return len(self).

capitalize()

Return a capitalized version of the string.

More specifically, make the first character have upper case and the rest lower case.

casefold()

Return a version of the string suitable for caseless comparisons.

center(width, fillchar=' ', /)

Return a centered string of length width.

Padding is done using the specified fill character (default is a space).

count(sub[, start[, end]]) → int

Return the number of non-overlapping occurrences of substring sub in string S[start:end]. Optional arguments start and end are interpreted as in slice notation.

encode(encoding='utf-8', errors='strict')

Encode the string using the codec registered for encoding.

encoding

The encoding in which to encode the string.

errors

The error handling scheme to use for encoding errors. The default is ‘strict’ meaning that encoding errors raise a UnicodeEncodeError. Other possible values are ‘ignore’, ‘replace’ and ‘xmlcharrefreplace’ as well as any other name registered with codecs.register_error that can handle UnicodeEncodeErrors.

endswith(suffix[, start[, end]]) → bool

Return True if S ends with the specified suffix, False otherwise. With optional start, test S beginning at that position. With optional end, stop comparing S at that position. suffix can also be a tuple of strings to try.

expandtabs(tabsize=8)

Return a copy where all tab characters are expanded using spaces.

If tabsize is not given, a tab size of 8 characters is assumed.

find(sub[, start[, end]]) → int

Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.

Return -1 on failure.

format(*args, **kwargs) → str

Return a formatted version of S, using substitutions from args and kwargs. The substitutions are identified by braces (‘{’ and ‘}’).

format_map(mapping) → str

Return a formatted version of S, using substitutions from mapping. The substitutions are identified by braces (‘{’ and ‘}’).

classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonImplementation(json_obj)

Abstract method that must be defined by all derived classes. Takes in a dictionary and constructs an instance of the derived class.

Parameters

json_dict (dict) – A dictionary loaded from a JSON string or file.

Returns

An instance of the derived class.

Return type

cls

get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

index(sub[, start[, end]]) → int

Return the lowest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.

Raises ValueError when the substring is not found.

isalnum()

Return True if the string is an alpha-numeric string, False otherwise.

A string is alpha-numeric if all characters in the string are alpha-numeric and there is at least one character in the string.

isalpha()

Return True if the string is an alphabetic string, False otherwise.

A string is alphabetic if all characters in the string are alphabetic and there is at least one character in the string.

isascii()

Return True if all characters in the string are ASCII, False otherwise.

ASCII characters have code points in the range U+0000-U+007F. Empty string is ASCII too.

isdecimal()

Return True if the string is a decimal string, False otherwise.

A string is a decimal string if all characters in the string are decimal and there is at least one character in the string.

isdigit()

Return True if the string is a digit string, False otherwise.

A string is a digit string if all characters in the string are digits and there is at least one character in the string.

isidentifier()

Return True if the string is a valid Python identifier, False otherwise.

Call keyword.iskeyword(s) to test whether string s is a reserved identifier, such as “def” or “class”.

islower()

Return True if the string is a lowercase string, False otherwise.

A string is lowercase if all cased characters in the string are lowercase and there is at least one cased character in the string.

isnumeric()

Return True if the string is a numeric string, False otherwise.

A string is numeric if all characters in the string are numeric and there is at least one character in the string.

isprintable()

Return True if the string is printable, False otherwise.

A string is printable if all of its characters are considered printable in repr() or if it is empty.

isspace()

Return True if the string is a whitespace string, False otherwise.

A string is whitespace if all characters in the string are whitespace and there is at least one character in the string.

istitle()

Return True if the string is a title-cased string, False otherwise.

In a title-cased string, upper- and title-case characters may only follow uncased characters and lowercase characters only cased ones.

isupper()

Return True if the string is an uppercase string, False otherwise.

A string is uppercase if all cased characters in the string are uppercase and there is at least one cased character in the string.

join(iterable, /)

Concatenate any number of strings.

The string whose method is called is inserted in between each given string. The result is returned as a new string.

Example: ‘.’.join([‘ab’, ‘pq’, ‘rs’]) -> ‘ab.pq.rs’

ljust(width, fillchar=' ', /)

Return a left-justified string of length width.

Padding is done using the specified fill character (default is a space).

lower()

Return a copy of the string converted to lowercase.

lstrip(chars=None, /)

Return a copy of the string with leading whitespace removed.

If chars is given and not None, remove characters in chars instead.

static maketrans()

Return a translation table usable for str.translate().

If there is only one argument, it must be a dictionary mapping Unicode ordinals (integers) or characters to Unicode ordinals, strings or None. Character keys will be then converted to ordinals. If there are two arguments, they must be strings of equal length, and in the resulting dictionary, each character in x will be mapped to the character at the same position in y. If there is a third argument, it must be a string, whose characters will be mapped to None in the result.

partition(sep, /)

Partition the string into three parts using the given separator.

This will search for the separator in the string. If the separator is found, returns a 3-tuple containing the part before the separator, the separator itself, and the part after it.

If the separator is not found, returns a 3-tuple containing the original string and two empty strings.

replace(old, new, count=- 1, /)

Return a copy with all occurrences of substring old replaced by new.

count

Maximum number of occurrences to replace. -1 (the default value) means replace all occurrences.

If the optional argument count is given, only the first count occurrences are replaced.

rfind(sub[, start[, end]]) → int

Return the highest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.

Return -1 on failure.

rindex(sub[, start[, end]]) → int

Return the highest index in S where substring sub is found, such that sub is contained within S[start:end]. Optional arguments start and end are interpreted as in slice notation.

Raises ValueError when the substring is not found.

rjust(width, fillchar=' ', /)

Return a right-justified string of length width.

Padding is done using the specified fill character (default is a space).

rpartition(sep, /)

Partition the string into three parts using the given separator.

This will search for the separator in the string, starting at the end. If the separator is found, returns a 3-tuple containing the part before the separator, the separator itself, and the part after it.

If the separator is not found, returns a 3-tuple containing two empty strings and the original string.

rsplit(sep=None, maxsplit=- 1)

Return a list of the words in the string, using sep as the delimiter string.

sep

The delimiter according which to split the string. None (the default value) means split according to any whitespace, and discard empty strings from the result.

maxsplit

Maximum number of splits to do. -1 (the default value) means no limit.

Splits are done starting at the end of the string and working to the front.

rstrip(chars=None, /)

Return a copy of the string with trailing whitespace removed.

If chars is given and not None, remove characters in chars instead.

split(sep=None, maxsplit=- 1)

Return a list of the words in the string, using sep as the delimiter string.

sep

The delimiter according which to split the string. None (the default value) means split according to any whitespace, and discard empty strings from the result.

maxsplit

Maximum number of splits to do. -1 (the default value) means no limit.

splitlines(keepends=False)

Return a list of the lines in the string, breaking at line boundaries.

Line breaks are not included in the resulting list unless keepends is given and true.

startswith(prefix[, start[, end]]) → bool

Return True if S starts with the specified prefix, False otherwise. With optional start, test S beginning at that position. With optional end, stop comparing S at that position. prefix can also be a tuple of strings to try.

strip(chars=None, /)

Return a copy of the string with leading and trailing whitespace removed.

If chars is given and not None, remove characters in chars instead.

swapcase()

Convert uppercase characters to lowercase and lowercase characters to uppercase.

title()

Return a version of the string where each word is titlecased.

More specifically, words start with uppercased characters and all remaining cased characters have lower case.

toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Abstract method that must be defined by all derived classes. Converts an instance of the derived class into a jsonifiable object.

Returns

A dict made up of JSON native datatypes or Jsonable objects. See the link below for a table of such types. https://docs.python.org/2/library/json.html#encoders-and-decoders

translate(table, /)

Replace each character in the string using the given translation table.

table

Translation table, which must be a mapping of Unicode ordinals to Unicode ordinals, strings, or None.

The table must implement lookup/indexing via __getitem__, for instance a dictionary or list. If this operation raises LookupError, the character is left untouched. Characters mapped to None are deleted.

upper()

Return a copy of the string converted to uppercase.

zfill(width, /)

Pad a numeric string with zeros on the left, to fill a field of the given width.

The string is never truncated.

class schrodinger.tasks.tasks.TaskDirSetting(value)

Bases: enum.Enum

An enumeration.

AUTO_TASKDIR = 1
TEMP_TASKDIR = 2
schrodinger.tasks.tasks.NUM_TRACEBACK_LINES = 10

The preprocessor and post processor decorators can be used to mark functions to be run before/after a task. These decorators may be used on task methods both with or without args:

class MyTask(tasks.BlockingFunctionTask):

    @tasks.preprocessor  # Use without args
    def checkInput(self):
        pass

    @tasks.preprocessor(order=tasks.AFTER_TASKDIR)  # Use with args
    def writeInput(self):
        pass

The optional order argument is a float that is used as a sorting key to determine the order of execution of pre/postprocessors. It’s recommended that one of the module level ordering constants is used, with +/- increments to fine- tune the order. For example:

class MyTask(tasks.BlockingFunctionTask):

    @tasks.preprocessor(order=tasks.AFTER_TASKDIR)
    def checkInput(self):
        pass

    def writeInput(self, order=tasks.AFTER_TASKDIR+1):
        pass

External functions may also be decorated. In this case, the function must also be added to a task instance. Example:

@tasks.preprocessor(order=tasks.AFTER_TASKDIR)
def foo()
    pass

task = MyTask()
task.addPreprocessor(foo)

Pre/postprocessors may optionally return a ProcessingResult. As a convenience, a (passed, message) tuple return value will automatically be cast into a ProcessingResult by the decorator. Examples:

@tasks.preprocessor
def checkInput(self):
    if self.input.x < 0:  # Preprocessing failure
        return False, 'x must be nonnegative.'

    if self.input.x > 100:  # Preprocessing warning
        return True, 'Large values of x may take a long time.'

    return True  # Pass (equivalent to returning None)

Returning False without a message will be a silent failure.

class schrodinger.tasks.tasks.ProcessingResult(passed, message=None)

Bases: object

A general-purpose return value for task pre/post processors

__init__(passed, message=None)
Parameters

  • passed (bool) – Whether the result is considered to be passing

  • message (str) – A message for this result

processorName()
class schrodinger.tasks.tasks.CallingContext(value)

Bases: enum.IntEnum

An enumeration.

CMDLINE = 1
GUI = 2
exception schrodinger.tasks.tasks.TaskFailure

Bases: Exception

Exception raised when a task fails for reasons other than an unexpected error occuring during execution.

__init__(*args, **kwargs)
args
with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

exception schrodinger.tasks.tasks.TaskKilled

Bases: schrodinger.tasks.tasks.TaskFailure

__init__(*args, **kwargs)
args
with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

class schrodinger.tasks.tasks.FailureInfo(*args, _param_type=<object object>, **kwargs)

Bases: schrodinger.models.parameters.CompoundParam

Dataclass for task failure information.

Printing an instance of this class will provide the minimum necessary human-readable representation of a recorded failure.

exception_class_name: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
message: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
traceback_str: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
NO_FAILURE_MSG = 'No failure recorded.'
matchesException(exception_class: type) → bool
DataClass

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
__init__(default_value=<object object>, _param_type=<object object>, **kwargs)
classmethod addSubParam(name, param, update_owner=True)
blockSignals(self, b: bool) → bool
block_signal_propagation()
childEvent(self, a0: QChildEvent)
children(self) → List[QObject]
classmethod configureParam()

Override this class method to set up the abstract param class (e.g. setParamReference on child params.)

connectNotify(self, signal: QMetaMethod)
customEvent(self, a0: QEvent)
classmethod defaultValue()

Returns the default value for this abstract param:

default_atom = Atom.defaultValue()
assert Atom.coord.x == 0
deleteLater(self)
destroyed

destroyed(self, object: typing.Optional[QObject] = None) [signal]

disconnect(a0: QMetaObject.Connection) → bool
disconnect(self) → None
disconnectNotify(self, signal: QMetaMethod)
dumpObjectInfo(self)
dumpObjectTree(self)
dynamicPropertyNames(self) → List[QByteArray]
event(self, a0: QEvent) → bool
eventFilter(self, a0: QObject, a1: QEvent) → bool
exception_class_nameChanged
exception_class_nameReplaced
findChild(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChild(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChildren(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonImplementation(json_dict)

Sets the value of this compound param value object from a JSON dict.

Warning

This should never be called directly.

getAbstractParam()

Return the corresponding abstract param for this instance.

classmethod getJsonBlacklist()

Override to customize what params are serialized.

Implementations should return a list of abstract params that should be omitted from serialization.

..NOTE

Returned abstract params must be direct child params of cls, e.g. cls.name, not cls.coord.x.

classmethod getParamSignal(obj, signal_type='Changed')
classmethod getParamValue(obj)

Enables access to a param value on a compound param via an abstract param reference:

a = Atom()
assert Atom.coord.x.getParamValue(a) == 0 # ints default to 0
a.coord.x = 3
assert Atom.coord.x.getParamValue(a) == 3
Parameters

param (CompoundParam) – The owner param to get a param value from

classmethod getSubParam(name)

Get the value of a subparam using the string name:

c = Coord()
assert c.getSubParam('x') == 0

Note

Using the string name to access params is generally discouraged, but can be useful for serializing/deserializing param data.

Parameters

name (str) – The name of the subparam to get the value for.

classmethod getSubParams()

Return a dictionary mapping subparam names to their values.

getTypeHint()
get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

inherits(self, classname: str) → bool
initAbstract()
initConcrete()

Override to customize initialization of concrete params.

initializeValue()

Override to dynamically set up the default value of the param. Useful for default values that are determined at runtime. This is called any time the param is reset.

installEventFilter(self, a0: QObject)
classmethod isAbstract()

Whether the param is an “abstract” param.

isDefault()

Whether the current value of this instance matches the default value.

isSignalConnected(self, signal: QMetaMethod) → bool
isWidgetType(self) → bool
isWindowType(self) → bool
killTimer(self, id: int)
messageChanged
messageReplaced
metaObject(self) → QMetaObject
moveToThread(self, thread: QThread)
objectName(self) → str
objectNameChanged

objectNameChanged(self, objectName: str) [signal]

classmethod owner()

Get the owner of the param:

# Can be called on an abstract param:
assert Coord.x.owner() == Coord

# ...or on an instance of a CompoundParam
a = Atom()
assert a.coord.owner() == a
classmethod ownerChain()

Returns a list of param owners starting from the toplevel param and ending with self. Examples:

foo.bar.atom.coord.ownerChain() will return [foo, bar, atom, coord] where every item is a concrete param.

Foo.bar.atom.coord.x.ownerChain() will return [Foo, Foo.bar, Foo.atom.coord, Foo.atom.coord.x] where every item is an abstract params.

classmethod paramName()

Get the name of the param:

# Can be called on an abstract param:
print(Coord.x.paramName()) # 'x'

# ...or on an instance of a CompoundParam
a = Atom()
a.coord.paramName() # 'coord'
parent(self) → QObject
property(self, name: str) → Any
pyqtConfigure(...)

Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

receivers(self, signal: PYQT_SIGNAL) → int
removeEventFilter(self, a0: QObject)
reset(*abstract_params)

Resets this compound param to its default value:

class Line(CompoundParam):
    start = Coord(x=1, y=2)
    end = Coord(x=4, y=5)
line = Line()
line.start.x = line.end.x = 10
assert line.start.x == line.end.x == 10
line.reset()
assert line.start.x == 1
assert line.end.x == 4

Any number of abstract params may be passed in to perform a partial reset of only the specified params:

line.start.x = line.end.x = 10
line.reset(Line.start.x)  # resets just start.x
assert line.start.x == 1
assert line.end.x == 10

line.reset(Line.end)      # resets the entire end point
assert line.end.x == 4

line.start.y = line.end.y = 10
line.reset(Line.start.y, Line.end.y)  # resets the y-coord of both
assert line.start.y == 2
assert line.end.y == 5
sender(self) → QObject
senderSignalIndex(self) → int
setObjectName(self, name: str)
classmethod setParamValue(obj, value)

Set the value of a param on an object by specifying the instance and the value:

# Setting the param value of a basic param
a = Atom()
Atom.coord.x.setParamValue(a, 5)
assert a.coord.x == 5

# setParamValue can also be used to set the value of CompoundParams
c = Coord()
c.x = 10
atom.coord.setParamValue(a, c)
assert atom.coord.x == 10
Parameters

  • param – The owner param to set a subparam value of.

  • value – The value to set the subparam value to.

setParent(self, a0: QObject)
setProperty(self, name: str, value: Any) → bool
classmethod setReference(param1, param2)

Call this class method from configureParam to indicate that two params should be kept in sync. The initial values will start with the default value of param1. Example:

class Square(CompoundParam):
    width: float = 5
    height: float = 10

    @classmethod
    def configureParam(cls):
        super().configureParam()
        cls.setReference(cls.width, cls.height)

square = Square()
assert square.width == square.height == 5 # Default value of width
                                          # takes priority
square.height = 7
assert square.width == square.height == 7
square.width = 6
assert square.width == square.height == 6
Parameters

  • param1 – The first abstract param to keep synced

  • param2 – The second abstract param. After instantiation, this param will take on the value of param1.

setValue(value=None, **kwargs)

Set the value of this CompoundParam to match value.

Parameters

  • value – The value to set this CompoundParam to. It should be the same type as this CompoundParam.

  • kwargs – For internal use only.

signalsBlocked(self) → bool
skip_eq_check()
startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int
staticMetaObject = <PyQt6.QtCore.QMetaObject object>
thread(self) → QThread
timerEvent(self, a0: QTimerEvent)
toDict()

Return a dictionary version of this CompoundParam. The returned dictionary is fully nested and contains no CompoundParam instances

a = Atom()
a_dict = a.toDict()
assert a_dict['coord']['x'] == 0
assert a_dict['coord'] == {'x':0, 'y':0}
toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Returns a JSON representation of this value object.

Warning

This should never be called directly.

tr(sourceText: str, disambiguation: typing.Optional[str] = None, n: int = - 1) → str
traceback_strChanged
traceback_strReplaced
valueChanged
class schrodinger.tasks.tasks.Status(value)

Bases: schrodinger.models.jsonable.JsonableIntEnum

An enumeration.

WAITING = 0
RUNNING = 1
FAILED = 2
DONE = 3
class schrodinger.tasks.tasks.AbstractTask(*args, _param_type=<object object>, **kwargs)

Bases: schrodinger.utils.funcchains.FuncChainMixin, schrodinger.models.parameters.CompoundParam

input: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
output: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
status: schrodinger.tasks.tasks.Status
name: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
max_progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progress_string: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
calling_context: schrodinger.tasks.tasks.CallingContext
failure_info: schrodinger.tasks.tasks.FailureInfo

Dataclass for task failure information.

Printing an instance of this class will provide the minimum necessary human-readable representation of a recorded failure.

taskDone
taskStarted
taskFailed
DEFAULT_TASKDIR_SETTING = None
AUTO_TASKDIR = 1
TEMP_TASKDIR = 2
classmethod fromJsonFilename(filename)
initConcrete()

Override to customize initialization of concrete params.

initializeValue()

@overrides: parameters.CompoundParam

INTERRUPT_ENABLED = False
run()
kill()

Implementations are responsible for immediately stopping the task. No threads or processes should be running after this method is complete.

This method should be called sparingly since in many contexts the task will be forced to terminate without a chance to clean up or free resources.

start(skip_preprocessing=False)

This is the main method for starting a task. Start will check if a task is not already running, run preprocessing, and then run the task.

Failures in preprocessing will interrupt the task start, and the task will never enter the RUNNING state.

Parameters

skip_preprocessing (bool) – whether to skip preprocessing. This can be useful if preprocessing was already performed prior to calling start.

wait(timeout=None)

Block until the task is finished executing or timeout seconds have passed.

Warning

This should not be called directly from GUI code - see PANEL-18317. It is safe to call inside a subprocess or job. Run git grep "task.wait(" to see safe examples annotated with “# OK”.

Parameters

timeout (NoneType or int) – Amount of time in seconds to wait before timing out. If None or a negative number, this method will wait until the task is finished.

isRunning()
isStartable()
specifyTaskDir(taskdir_spec)

Specify the taskdir creation behavior. Use one of the following options:

A directory name (string). This may be a relative or absolute path

None - no taskdir is requested. The task will use the CWD as its taskdir

AUTO_TASKDIR - a new subdirectory will be created in the CWD using the task name as the directory name.

TEMP_TASKDIR - a temporary directory will be created in the schrodinger temp dir. This directory is cleaned up when the task is deleted.

Parameters

taskdir_spec – one of the four options listed above

taskDirSetting()

Returns the taskdir spec. See specifyTaskDir() for details.

getTaskDir()

Returns the full path of the task directory. This is only available if the task directory exists (after creation of the taskdir or, if no task dir is specified, any time).

getTaskFilename(fname)

Return the appropriate absolute path for an input or output file in the taskdir.

addPreprocessor(func, order=None)

Adds a preproceessor function to this task instance. If the function has been decorated with @preprocessor, the order specified by the decorator will be used as the default.

Parameters

  • func – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

addPostprocessor(func, order=0)

Adds a postproceessor function to this task instance. If the function has been decorated with @postprocessor, the order specified by the decorator will be used.

Parameters

  • func (typing.Callable) – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

preprocessors()
Returns

A list of preprocessors (both decorated methods on the task and external functions that have been added via addPreprocessor)

postprocessors()
Returns

A list of postprocessors, both decorated methods on the task and external functions that have been added via addPostprocessor()

Return type

list[typing.Callable]

reset(*args, **kwargs)

Resets this compound param to its default value:

class Line(CompoundParam):
    start = Coord(x=1, y=2)
    end = Coord(x=4, y=5)
line = Line()
line.start.x = line.end.x = 10
assert line.start.x == line.end.x == 10
line.reset()
assert line.start.x == 1
assert line.end.x == 4

Any number of abstract params may be passed in to perform a partial reset of only the specified params:

line.start.x = line.end.x = 10
line.reset(Line.start.x)  # resets just start.x
assert line.start.x == 1
assert line.end.x == 10

line.reset(Line.end)      # resets the entire end point
assert line.end.x == 4

line.start.y = line.end.y = 10
line.reset(Line.start.y, Line.end.y)  # resets the y-coord of both
assert line.start.y == 2
assert line.end.y == 5
replicate()

Create a new task with the same input and settings (but no output)

isDebugEnabled()
printDebug(*args)
getDebugString()
requestInterruption()

Request the task to stop.

To enable this feature, subclasses should periodically check whether an interruption has been requested and terminate if it has been. If such logic has been included, INTERRUPT_ENABLED should be set to True.

isInterruptionRequested()
addLicenseReservation(license, num_tokens=1)

Add a license reservation for this job. This information is used by job control to ensure the job is only started once the required licenses become available.

In a preprocessor, (i.e. before launching the backend), a reservation should be added for each license that will be checked out directly by that backend. Example:

class GlideTask(ComboJobTask):

    @preprocessor
    def _reserveGlideLicense(self):
        # Reserve a Glide license.
        self.addLicenseReservation(license.GLIDE_MAIN)

    def mainFunction(self):
        # Check out the Glide license
        lic = license.License(license.GLIDE_MAIN)

        # ... Do computations requiring Glide ...

        lic.checkin()

Licenses that will be checked out by subjobs of this job do not need reservations added here; subjobs are responsible for their own license reservations.

Parameters

  • license (module-constant from schrodinger.utils.license (e.g. license.AUTODESIGNER)) – a license that will be used by the backend

  • num_tokens (int) – number of tokens for this license reservations

final runPreprocessing(callback=None, calling_context=None)

Run the preprocessors one-by-one. By default, any failing preprocessor will raise a TaskFailure exception and terminate processing. This behavior may be customized by supplying a callback function which will be called after each preprocessor with the result of that preprocessor.

This method is “final” so that all preprocessing logic will be enclosed in the try/finally block.

Parameters

  • callback – a function that takes result and returns a bool that indicates whether to continue on to the next preprocessor

  • calling_context – specify a value here to indicate the context in which this preprocessing is being called. This value will be stored in an instance variable, self.calling_context, which can be accessed from any preprocessor method on this task. Typically this value will be either self.GUI, self.CMDLINE, or None, but any value may be supplied here and checked for in the preprocessor methods. self.calling_context always reverts back to None at the end of runPreprocessing.

guard()

Context manager that saves any Exception raised inside

CMDLINE = 1
DONE = 3
DataClass

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
FAILED = 2
GUI = 2
RUNNING = 1
WAITING = 0
__init__(*args, **kwargs)
addFuncToGroup(func, group=None, order=None)

Adds a function to the specified chain. Typically used for adding functions that are not methods of this object.

The function may optionally be decorated with a FuncGroupMarker. If so, the default group and order will be determined by the decorator. Any group or order explicitly passed in to addFuncToGroup will take precedence over the decorator settings.

Parameters

  • func – the function to add

  • group (FuncGroupMarker or None) – the group marker. If the function is decorated with a FuncGoupMarker, that group marker will be the default.

  • order (float or None) – the sorting order. If the function is decorated with a FuncGoupMarker, the order specified in the decorator will be the default.

classmethod addSubParam(name, param, update_owner=True)
blockSignals(self, b: bool) → bool
block_signal_propagation()
calling_contextChanged
calling_contextReplaced
childEvent(self, a0: QChildEvent)
children(self) → List[QObject]
classmethod configureParam()

Override this class method to set up the abstract param class (e.g. setParamReference on child params.)

connectNotify(self, signal: QMetaMethod)
customEvent(self, a0: QEvent)
classmethod defaultValue()

Returns the default value for this abstract param:

default_atom = Atom.defaultValue()
assert Atom.coord.x == 0
deleteLater(self)
destroyed

destroyed(self, object: typing.Optional[QObject] = None) [signal]

disconnect(a0: QMetaObject.Connection) → bool
disconnect(self) → None
disconnectNotify(self, signal: QMetaMethod)
dumpObjectInfo(self)
dumpObjectTree(self)
dynamicPropertyNames(self) → List[QByteArray]
event(self, a0: QEvent) → bool
eventFilter(self, a0: QObject, a1: QEvent) → bool
failure_infoChanged
failure_infoReplaced
findChild(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChild(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChildren(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonImplementation(json_dict)

Sets the value of this compound param value object from a JSON dict.

Warning

This should never be called directly.

getAbstractParam()

Return the corresponding abstract param for this instance.

getAddedFuncs(group=None)
getFuncGroup(group=None)

Retrieve the functions belonging to the specified group.

Parameters

group (FuncGroupMarker) – the group marker

Returns

the functions in the specified group, in order

Return type

list

classmethod getJsonBlacklist()

Override to customize what params are serialized.

Implementations should return a list of abstract params that should be omitted from serialization.

..NOTE

Returned abstract params must be direct child params of cls, e.g. cls.name, not cls.coord.x.

classmethod getParamSignal(obj, signal_type='Changed')
classmethod getParamValue(obj)

Enables access to a param value on a compound param via an abstract param reference:

a = Atom()
assert Atom.coord.x.getParamValue(a) == 0 # ints default to 0
a.coord.x = 3
assert Atom.coord.x.getParamValue(a) == 3
Parameters

param (CompoundParam) – The owner param to get a param value from

classmethod getSubParam(name)

Get the value of a subparam using the string name:

c = Coord()
assert c.getSubParam('x') == 0

Note

Using the string name to access params is generally discouraged, but can be useful for serializing/deserializing param data.

Parameters

name (str) – The name of the subparam to get the value for.

classmethod getSubParams()

Return a dictionary mapping subparam names to their values.

getTypeHint()
get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

inherits(self, classname: str) → bool
initAbstract()
inputChanged
inputReplaced
installEventFilter(self, a0: QObject)
classmethod isAbstract()

Whether the param is an “abstract” param.

isDefault()

Whether the current value of this instance matches the default value.

isSignalConnected(self, signal: QMetaMethod) → bool
isWidgetType(self) → bool
isWindowType(self) → bool
killTimer(self, id: int)
max_progressChanged
max_progressReplaced
metaObject(self) → QMetaObject
moveToThread(self, thread: QThread)
nameChanged
nameReplaced
objectName(self) → str
objectNameChanged

objectNameChanged(self, objectName: str) [signal]

outputChanged
outputReplaced
classmethod owner()

Get the owner of the param:

# Can be called on an abstract param:
assert Coord.x.owner() == Coord

# ...or on an instance of a CompoundParam
a = Atom()
assert a.coord.owner() == a
classmethod ownerChain()

Returns a list of param owners starting from the toplevel param and ending with self. Examples:

foo.bar.atom.coord.ownerChain() will return [foo, bar, atom, coord] where every item is a concrete param.

Foo.bar.atom.coord.x.ownerChain() will return [Foo, Foo.bar, Foo.atom.coord, Foo.atom.coord.x] where every item is an abstract params.

classmethod paramName()

Get the name of the param:

# Can be called on an abstract param:
print(Coord.x.paramName()) # 'x'

# ...or on an instance of a CompoundParam
a = Atom()
a.coord.paramName() # 'coord'
parent(self) → QObject
processFuncChain(chain=None, result_callback=None)

Execute each function in the specified chain sequentially in order.

The result_callback is called after each function with the return value of that function. This can be used to respond to the return value (e.g. present information to the user, get user feedback, log the result, etc.)

The return value of the result_callback determines whether processing will proceeed to the next function.

Parameters

  • chain (FuncChainDecorator) – which chain to process

  • result_callback – the callback that will get called with the result of each function in the chain

Returns

a list of the results from the functions

progressChanged
progressReplaced
progress_stringChanged
progress_stringReplaced
property(self, name: str) → Any
pyqtConfigure(...)

Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

receivers(self, signal: PYQT_SIGNAL) → int
removeEventFilter(self, a0: QObject)
sender(self) → QObject
senderSignalIndex(self) → int
setObjectName(self, name: str)
classmethod setParamValue(obj, value)

Set the value of a param on an object by specifying the instance and the value:

# Setting the param value of a basic param
a = Atom()
Atom.coord.x.setParamValue(a, 5)
assert a.coord.x == 5

# setParamValue can also be used to set the value of CompoundParams
c = Coord()
c.x = 10
atom.coord.setParamValue(a, c)
assert atom.coord.x == 10
Parameters

  • param – The owner param to set a subparam value of.

  • value – The value to set the subparam value to.

setParent(self, a0: QObject)
setProperty(self, name: str, value: Any) → bool
classmethod setReference(param1, param2)

Call this class method from configureParam to indicate that two params should be kept in sync. The initial values will start with the default value of param1. Example:

class Square(CompoundParam):
    width: float = 5
    height: float = 10

    @classmethod
    def configureParam(cls):
        super().configureParam()
        cls.setReference(cls.width, cls.height)

square = Square()
assert square.width == square.height == 5 # Default value of width
                                          # takes priority
square.height = 7
assert square.width == square.height == 7
square.width = 6
assert square.width == square.height == 6
Parameters

  • param1 – The first abstract param to keep synced

  • param2 – The second abstract param. After instantiation, this param will take on the value of param1.

setValue(value=None, **kwargs)

Set the value of this CompoundParam to match value.

Parameters

  • value – The value to set this CompoundParam to. It should be the same type as this CompoundParam.

  • kwargs – For internal use only.

signalsBlocked(self) → bool
skip_eq_check()
startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int
staticMetaObject = <PyQt6.QtCore.QMetaObject object>
statusChanged
statusReplaced
thread(self) → QThread
timerEvent(self, a0: QTimerEvent)
toDict()

Return a dictionary version of this CompoundParam. The returned dictionary is fully nested and contains no CompoundParam instances

a = Atom()
a_dict = a.toDict()
assert a_dict['coord']['x'] == 0
assert a_dict['coord'] == {'x':0, 'y':0}
toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Returns a JSON representation of this value object.

Warning

This should never be called directly.

tr(sourceText: str, disambiguation: typing.Optional[str] = None, n: int = - 1) → str
valueChanged
class schrodinger.tasks.tasks.AbstractCmdTask(*args, _param_type=<object object>, **kwargs)

Bases: schrodinger.tasks.tasks.AbstractTask

run()
runCmd(cmd)
makeCmd()
AUTO_TASKDIR = 1
CMDLINE = 1
DEFAULT_TASKDIR_SETTING = None
DONE = 3
DataClass

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
FAILED = 2
GUI = 2
INTERRUPT_ENABLED = False
RUNNING = 1
TEMP_TASKDIR = 2
WAITING = 0
__init__(*args, **kwargs)
addFuncToGroup(func, group=None, order=None)

Adds a function to the specified chain. Typically used for adding functions that are not methods of this object.

The function may optionally be decorated with a FuncGroupMarker. If so, the default group and order will be determined by the decorator. Any group or order explicitly passed in to addFuncToGroup will take precedence over the decorator settings.

Parameters

  • func – the function to add

  • group (FuncGroupMarker or None) – the group marker. If the function is decorated with a FuncGoupMarker, that group marker will be the default.

  • order (float or None) – the sorting order. If the function is decorated with a FuncGoupMarker, the order specified in the decorator will be the default.

addLicenseReservation(license, num_tokens=1)

Add a license reservation for this job. This information is used by job control to ensure the job is only started once the required licenses become available.

In a preprocessor, (i.e. before launching the backend), a reservation should be added for each license that will be checked out directly by that backend. Example:

class GlideTask(ComboJobTask):

    @preprocessor
    def _reserveGlideLicense(self):
        # Reserve a Glide license.
        self.addLicenseReservation(license.GLIDE_MAIN)

    def mainFunction(self):
        # Check out the Glide license
        lic = license.License(license.GLIDE_MAIN)

        # ... Do computations requiring Glide ...

        lic.checkin()

Licenses that will be checked out by subjobs of this job do not need reservations added here; subjobs are responsible for their own license reservations.

Parameters

  • license (module-constant from schrodinger.utils.license (e.g. license.AUTODESIGNER)) – a license that will be used by the backend

  • num_tokens (int) – number of tokens for this license reservations

addPostprocessor(func, order=0)

Adds a postproceessor function to this task instance. If the function has been decorated with @postprocessor, the order specified by the decorator will be used.

Parameters

  • func (typing.Callable) – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

addPreprocessor(func, order=None)

Adds a preproceessor function to this task instance. If the function has been decorated with @preprocessor, the order specified by the decorator will be used as the default.

Parameters

  • func – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

classmethod addSubParam(name, param, update_owner=True)
blockSignals(self, b: bool) → bool
block_signal_propagation()
calling_context: schrodinger.tasks.tasks.CallingContext
calling_contextChanged
calling_contextReplaced
childEvent(self, a0: QChildEvent)
children(self) → List[QObject]
classmethod configureParam()

Override this class method to set up the abstract param class (e.g. setParamReference on child params.)

connectNotify(self, signal: QMetaMethod)
customEvent(self, a0: QEvent)
classmethod defaultValue()

Returns the default value for this abstract param:

default_atom = Atom.defaultValue()
assert Atom.coord.x == 0
deleteLater(self)
destroyed

destroyed(self, object: typing.Optional[QObject] = None) [signal]

disconnect(a0: QMetaObject.Connection) → bool
disconnect(self) → None
disconnectNotify(self, signal: QMetaMethod)
dumpObjectInfo(self)
dumpObjectTree(self)
dynamicPropertyNames(self) → List[QByteArray]
event(self, a0: QEvent) → bool
eventFilter(self, a0: QObject, a1: QEvent) → bool
failure_info: schrodinger.tasks.tasks.FailureInfo

Dataclass for task failure information.

Printing an instance of this class will provide the minimum necessary human-readable representation of a recorded failure.

failure_infoChanged
failure_infoReplaced
findChild(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChild(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChildren(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonFilename(filename)
classmethod fromJsonImplementation(json_dict)

Sets the value of this compound param value object from a JSON dict.

Warning

This should never be called directly.

getAbstractParam()

Return the corresponding abstract param for this instance.

getAddedFuncs(group=None)
getDebugString()
getFuncGroup(group=None)

Retrieve the functions belonging to the specified group.

Parameters

group (FuncGroupMarker) – the group marker

Returns

the functions in the specified group, in order

Return type

list

classmethod getJsonBlacklist()

Override to customize what params are serialized.

Implementations should return a list of abstract params that should be omitted from serialization.

..NOTE

Returned abstract params must be direct child params of cls, e.g. cls.name, not cls.coord.x.

classmethod getParamSignal(obj, signal_type='Changed')
classmethod getParamValue(obj)

Enables access to a param value on a compound param via an abstract param reference:

a = Atom()
assert Atom.coord.x.getParamValue(a) == 0 # ints default to 0
a.coord.x = 3
assert Atom.coord.x.getParamValue(a) == 3
Parameters

param (CompoundParam) – The owner param to get a param value from

classmethod getSubParam(name)

Get the value of a subparam using the string name:

c = Coord()
assert c.getSubParam('x') == 0

Note

Using the string name to access params is generally discouraged, but can be useful for serializing/deserializing param data.

Parameters

name (str) – The name of the subparam to get the value for.

classmethod getSubParams()

Return a dictionary mapping subparam names to their values.

getTaskDir()

Returns the full path of the task directory. This is only available if the task directory exists (after creation of the taskdir or, if no task dir is specified, any time).

getTaskFilename(fname)

Return the appropriate absolute path for an input or output file in the taskdir.

getTypeHint()
get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

guard()

Context manager that saves any Exception raised inside

inherits(self, classname: str) → bool
initAbstract()
initConcrete()

Override to customize initialization of concrete params.

initializeValue()

@overrides: parameters.CompoundParam

input: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
inputChanged
inputReplaced
installEventFilter(self, a0: QObject)
classmethod isAbstract()

Whether the param is an “abstract” param.

isDebugEnabled()
isDefault()

Whether the current value of this instance matches the default value.

isInterruptionRequested()
isRunning()
isSignalConnected(self, signal: QMetaMethod) → bool
isStartable()
isWidgetType(self) → bool
isWindowType(self) → bool
kill()

Implementations are responsible for immediately stopping the task. No threads or processes should be running after this method is complete.

This method should be called sparingly since in many contexts the task will be forced to terminate without a chance to clean up or free resources.

killTimer(self, id: int)
max_progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
max_progressChanged
max_progressReplaced
metaObject(self) → QMetaObject
moveToThread(self, thread: QThread)
name: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
nameChanged
nameReplaced
objectName(self) → str
objectNameChanged

objectNameChanged(self, objectName: str) [signal]

output: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
outputChanged
outputReplaced
classmethod owner()

Get the owner of the param:

# Can be called on an abstract param:
assert Coord.x.owner() == Coord

# ...or on an instance of a CompoundParam
a = Atom()
assert a.coord.owner() == a
classmethod ownerChain()

Returns a list of param owners starting from the toplevel param and ending with self. Examples:

foo.bar.atom.coord.ownerChain() will return [foo, bar, atom, coord] where every item is a concrete param.

Foo.bar.atom.coord.x.ownerChain() will return [Foo, Foo.bar, Foo.atom.coord, Foo.atom.coord.x] where every item is an abstract params.

classmethod paramName()

Get the name of the param:

# Can be called on an abstract param:
print(Coord.x.paramName()) # 'x'

# ...or on an instance of a CompoundParam
a = Atom()
a.coord.paramName() # 'coord'
parent(self) → QObject
postprocessors()
Returns

A list of postprocessors, both decorated methods on the task and external functions that have been added via addPostprocessor()

Return type

list[typing.Callable]

preprocessors()
Returns

A list of preprocessors (both decorated methods on the task and external functions that have been added via addPreprocessor)

printDebug(*args)
processFuncChain(chain=None, result_callback=None)

Execute each function in the specified chain sequentially in order.

The result_callback is called after each function with the return value of that function. This can be used to respond to the return value (e.g. present information to the user, get user feedback, log the result, etc.)

The return value of the result_callback determines whether processing will proceeed to the next function.

Parameters

  • chain (FuncChainDecorator) – which chain to process

  • result_callback – the callback that will get called with the result of each function in the chain

Returns

a list of the results from the functions

progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progressChanged
progressReplaced
progress_string: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progress_stringChanged
progress_stringReplaced
property(self, name: str) → Any
pyqtConfigure(...)

Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

receivers(self, signal: PYQT_SIGNAL) → int
removeEventFilter(self, a0: QObject)
replicate()

Create a new task with the same input and settings (but no output)

requestInterruption()

Request the task to stop.

To enable this feature, subclasses should periodically check whether an interruption has been requested and terminate if it has been. If such logic has been included, INTERRUPT_ENABLED should be set to True.

reset(*args, **kwargs)

Resets this compound param to its default value:

class Line(CompoundParam):
    start = Coord(x=1, y=2)
    end = Coord(x=4, y=5)
line = Line()
line.start.x = line.end.x = 10
assert line.start.x == line.end.x == 10
line.reset()
assert line.start.x == 1
assert line.end.x == 4

Any number of abstract params may be passed in to perform a partial reset of only the specified params:

line.start.x = line.end.x = 10
line.reset(Line.start.x)  # resets just start.x
assert line.start.x == 1
assert line.end.x == 10

line.reset(Line.end)      # resets the entire end point
assert line.end.x == 4

line.start.y = line.end.y = 10
line.reset(Line.start.y, Line.end.y)  # resets the y-coord of both
assert line.start.y == 2
assert line.end.y == 5
runPreprocessing(callback=None, calling_context=None)

Run the preprocessors one-by-one. By default, any failing preprocessor will raise a TaskFailure exception and terminate processing. This behavior may be customized by supplying a callback function which will be called after each preprocessor with the result of that preprocessor.

This method is “final” so that all preprocessing logic will be enclosed in the try/finally block.

Parameters

  • callback – a function that takes result and returns a bool that indicates whether to continue on to the next preprocessor

  • calling_context – specify a value here to indicate the context in which this preprocessing is being called. This value will be stored in an instance variable, self.calling_context, which can be accessed from any preprocessor method on this task. Typically this value will be either self.GUI, self.CMDLINE, or None, but any value may be supplied here and checked for in the preprocessor methods. self.calling_context always reverts back to None at the end of runPreprocessing.

sender(self) → QObject
senderSignalIndex(self) → int
setObjectName(self, name: str)
classmethod setParamValue(obj, value)

Set the value of a param on an object by specifying the instance and the value:

# Setting the param value of a basic param
a = Atom()
Atom.coord.x.setParamValue(a, 5)
assert a.coord.x == 5

# setParamValue can also be used to set the value of CompoundParams
c = Coord()
c.x = 10
atom.coord.setParamValue(a, c)
assert atom.coord.x == 10
Parameters

  • param – The owner param to set a subparam value of.

  • value – The value to set the subparam value to.

setParent(self, a0: QObject)
setProperty(self, name: str, value: Any) → bool
classmethod setReference(param1, param2)

Call this class method from configureParam to indicate that two params should be kept in sync. The initial values will start with the default value of param1. Example:

class Square(CompoundParam):
    width: float = 5
    height: float = 10

    @classmethod
    def configureParam(cls):
        super().configureParam()
        cls.setReference(cls.width, cls.height)

square = Square()
assert square.width == square.height == 5 # Default value of width
                                          # takes priority
square.height = 7
assert square.width == square.height == 7
square.width = 6
assert square.width == square.height == 6
Parameters

  • param1 – The first abstract param to keep synced

  • param2 – The second abstract param. After instantiation, this param will take on the value of param1.

setValue(value=None, **kwargs)

Set the value of this CompoundParam to match value.

Parameters

  • value – The value to set this CompoundParam to. It should be the same type as this CompoundParam.

  • kwargs – For internal use only.

signalsBlocked(self) → bool
skip_eq_check()
specifyTaskDir(taskdir_spec)

Specify the taskdir creation behavior. Use one of the following options:

A directory name (string). This may be a relative or absolute path

None - no taskdir is requested. The task will use the CWD as its taskdir

AUTO_TASKDIR - a new subdirectory will be created in the CWD using the task name as the directory name.

TEMP_TASKDIR - a temporary directory will be created in the schrodinger temp dir. This directory is cleaned up when the task is deleted.

Parameters

taskdir_spec – one of the four options listed above

start(skip_preprocessing=False)

This is the main method for starting a task. Start will check if a task is not already running, run preprocessing, and then run the task.

Failures in preprocessing will interrupt the task start, and the task will never enter the RUNNING state.

Parameters

skip_preprocessing (bool) – whether to skip preprocessing. This can be useful if preprocessing was already performed prior to calling start.

startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int
staticMetaObject = <PyQt6.QtCore.QMetaObject object>
status: schrodinger.tasks.tasks.Status
statusChanged
statusReplaced
taskDirSetting()

Returns the taskdir spec. See specifyTaskDir() for details.

taskDone
taskFailed
taskStarted
thread(self) → QThread
timerEvent(self, a0: QTimerEvent)
toDict()

Return a dictionary version of this CompoundParam. The returned dictionary is fully nested and contains no CompoundParam instances

a = Atom()
a_dict = a.toDict()
assert a_dict['coord']['x'] == 0
assert a_dict['coord'] == {'x':0, 'y':0}
toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Returns a JSON representation of this value object.

Warning

This should never be called directly.

tr(sourceText: str, disambiguation: typing.Optional[str] = None, n: int = - 1) → str
valueChanged
wait(timeout=None)

Block until the task is finished executing or timeout seconds have passed.

Warning

This should not be called directly from GUI code - see PANEL-18317. It is safe to call inside a subprocess or job. Run git grep "task.wait(" to see safe examples annotated with “# OK”.

Parameters

timeout (NoneType or int) – Amount of time in seconds to wait before timing out. If None or a negative number, this method will wait until the task is finished.

class schrodinger.tasks.tasks.AbstractComboTask(*args, _param_type=<object object>, **kwargs)

Bases: schrodinger.tasks.tasks.AbstractCmdTask, schrodinger.tasks.tasks._AbstractFunctionTask

Subclasses should only define params inside of input or output. Top-level params defined in subclasses do NOT get serialized between the frontend and backend task instances. Thus, any modifications of new top-level params in the backend (i.e. mainFunction) will not have any effect on the rehydrated frontend task.

ENTRYPOINT = 'combotask_entry_point.py'
initializeValue()

@overrides: parameters.CompoundParam

property json_filename
property json_out_filename
start(*args, **kwargs)

@overrides: AbstractTask

runInProcess()
isBackendMode()
makeCmd()

@overrides: AbstractCmdTask

backendMain()
runBackend()
AUTO_TASKDIR = 1
CMDLINE = 1
DEFAULT_TASKDIR_SETTING = None
DONE = 3
DataClass

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
FAILED = 2
GUI = 2
INTERRUPT_ENABLED = False
RUNNING = 1
TEMP_TASKDIR = 2
WAITING = 0
__init__(*args, **kwargs)
addFuncToGroup(func, group=None, order=None)

Adds a function to the specified chain. Typically used for adding functions that are not methods of this object.

The function may optionally be decorated with a FuncGroupMarker. If so, the default group and order will be determined by the decorator. Any group or order explicitly passed in to addFuncToGroup will take precedence over the decorator settings.

Parameters

  • func – the function to add

  • group (FuncGroupMarker or None) – the group marker. If the function is decorated with a FuncGoupMarker, that group marker will be the default.

  • order (float or None) – the sorting order. If the function is decorated with a FuncGoupMarker, the order specified in the decorator will be the default.

addLicenseReservation(license, num_tokens=1)

Add a license reservation for this job. This information is used by job control to ensure the job is only started once the required licenses become available.

In a preprocessor, (i.e. before launching the backend), a reservation should be added for each license that will be checked out directly by that backend. Example:

class GlideTask(ComboJobTask):

    @preprocessor
    def _reserveGlideLicense(self):
        # Reserve a Glide license.
        self.addLicenseReservation(license.GLIDE_MAIN)

    def mainFunction(self):
        # Check out the Glide license
        lic = license.License(license.GLIDE_MAIN)

        # ... Do computations requiring Glide ...

        lic.checkin()

Licenses that will be checked out by subjobs of this job do not need reservations added here; subjobs are responsible for their own license reservations.

Parameters

  • license (module-constant from schrodinger.utils.license (e.g. license.AUTODESIGNER)) – a license that will be used by the backend

  • num_tokens (int) – number of tokens for this license reservations

addPostprocessor(func, order=0)

Adds a postproceessor function to this task instance. If the function has been decorated with @postprocessor, the order specified by the decorator will be used.

Parameters

  • func (typing.Callable) – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

addPreprocessor(func, order=None)

Adds a preproceessor function to this task instance. If the function has been decorated with @preprocessor, the order specified by the decorator will be used as the default.

Parameters

  • func – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

classmethod addSubParam(name, param, update_owner=True)
blockSignals(self, b: bool) → bool
block_signal_propagation()
calling_context: schrodinger.tasks.tasks.CallingContext
calling_contextChanged
calling_contextReplaced
childEvent(self, a0: QChildEvent)
children(self) → List[QObject]
classmethod configureParam()

Override this class method to set up the abstract param class (e.g. setParamReference on child params.)

connectNotify(self, signal: QMetaMethod)
customEvent(self, a0: QEvent)
classmethod defaultValue()

Returns the default value for this abstract param:

default_atom = Atom.defaultValue()
assert Atom.coord.x == 0
deleteLater(self)
destroyed

destroyed(self, object: typing.Optional[QObject] = None) [signal]

disconnect(a0: QMetaObject.Connection) → bool
disconnect(self) → None
disconnectNotify(self, signal: QMetaMethod)
dumpObjectInfo(self)
dumpObjectTree(self)
dynamicPropertyNames(self) → List[QByteArray]
event(self, a0: QEvent) → bool
eventFilter(self, a0: QObject, a1: QEvent) → bool
failure_info: schrodinger.tasks.tasks.FailureInfo

Dataclass for task failure information.

Printing an instance of this class will provide the minimum necessary human-readable representation of a recorded failure.

failure_infoChanged
failure_infoReplaced
findChild(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChild(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChildren(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonFilename(filename)
classmethod fromJsonImplementation(json_dict)

Sets the value of this compound param value object from a JSON dict.

Warning

This should never be called directly.

getAbstractParam()

Return the corresponding abstract param for this instance.

getAddedFuncs(group=None)
getDebugString()
getFuncGroup(group=None)

Retrieve the functions belonging to the specified group.

Parameters

group (FuncGroupMarker) – the group marker

Returns

the functions in the specified group, in order

Return type

list

classmethod getJsonBlacklist()

Override to customize what params are serialized.

Implementations should return a list of abstract params that should be omitted from serialization.

..NOTE

Returned abstract params must be direct child params of cls, e.g. cls.name, not cls.coord.x.

classmethod getParamSignal(obj, signal_type='Changed')
classmethod getParamValue(obj)

Enables access to a param value on a compound param via an abstract param reference:

a = Atom()
assert Atom.coord.x.getParamValue(a) == 0 # ints default to 0
a.coord.x = 3
assert Atom.coord.x.getParamValue(a) == 3
Parameters

param (CompoundParam) – The owner param to get a param value from

classmethod getSubParam(name)

Get the value of a subparam using the string name:

c = Coord()
assert c.getSubParam('x') == 0

Note

Using the string name to access params is generally discouraged, but can be useful for serializing/deserializing param data.

Parameters

name (str) – The name of the subparam to get the value for.

classmethod getSubParams()

Return a dictionary mapping subparam names to their values.

getTaskDir()

Returns the full path of the task directory. This is only available if the task directory exists (after creation of the taskdir or, if no task dir is specified, any time).

getTaskFilename(fname)

Return the appropriate absolute path for an input or output file in the taskdir.

getTypeHint()
get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

guard()

Context manager that saves any Exception raised inside

inherits(self, classname: str) → bool
initAbstract()
initConcrete()

Override to customize initialization of concrete params.

input: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
inputChanged
inputReplaced
installEventFilter(self, a0: QObject)
classmethod isAbstract()

Whether the param is an “abstract” param.

isDebugEnabled()
isDefault()

Whether the current value of this instance matches the default value.

isInterruptionRequested()
isRunning()
isSignalConnected(self, signal: QMetaMethod) → bool
isStartable()
isWidgetType(self) → bool
isWindowType(self) → bool
kill()

Implementations are responsible for immediately stopping the task. No threads or processes should be running after this method is complete.

This method should be called sparingly since in many contexts the task will be forced to terminate without a chance to clean up or free resources.

killTimer(self, id: int)
mainFunction()
max_progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
max_progressChanged
max_progressReplaced
metaObject(self) → QMetaObject
moveToThread(self, thread: QThread)
name: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
nameChanged
nameReplaced
objectName(self) → str
objectNameChanged

objectNameChanged(self, objectName: str) [signal]

output: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
outputChanged
outputReplaced
classmethod owner()

Get the owner of the param:

# Can be called on an abstract param:
assert Coord.x.owner() == Coord

# ...or on an instance of a CompoundParam
a = Atom()
assert a.coord.owner() == a
classmethod ownerChain()

Returns a list of param owners starting from the toplevel param and ending with self. Examples:

foo.bar.atom.coord.ownerChain() will return [foo, bar, atom, coord] where every item is a concrete param.

Foo.bar.atom.coord.x.ownerChain() will return [Foo, Foo.bar, Foo.atom.coord, Foo.atom.coord.x] where every item is an abstract params.

classmethod paramName()

Get the name of the param:

# Can be called on an abstract param:
print(Coord.x.paramName()) # 'x'

# ...or on an instance of a CompoundParam
a = Atom()
a.coord.paramName() # 'coord'
parent(self) → QObject
postprocessors()
Returns

A list of postprocessors, both decorated methods on the task and external functions that have been added via addPostprocessor()

Return type

list[typing.Callable]

preprocessors()
Returns

A list of preprocessors (both decorated methods on the task and external functions that have been added via addPreprocessor)

printDebug(*args)
processFuncChain(chain=None, result_callback=None)

Execute each function in the specified chain sequentially in order.

The result_callback is called after each function with the return value of that function. This can be used to respond to the return value (e.g. present information to the user, get user feedback, log the result, etc.)

The return value of the result_callback determines whether processing will proceeed to the next function.

Parameters

  • chain (FuncChainDecorator) – which chain to process

  • result_callback – the callback that will get called with the result of each function in the chain

Returns

a list of the results from the functions

progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progressChanged
progressReplaced
progress_string: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progress_stringChanged
progress_stringReplaced
property(self, name: str) → Any
pyqtConfigure(...)

Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

receivers(self, signal: PYQT_SIGNAL) → int
removeEventFilter(self, a0: QObject)
replicate()

Create a new task with the same input and settings (but no output)

requestInterruption()

Request the task to stop.

To enable this feature, subclasses should periodically check whether an interruption has been requested and terminate if it has been. If such logic has been included, INTERRUPT_ENABLED should be set to True.

reset(*args, **kwargs)

Resets this compound param to its default value:

class Line(CompoundParam):
    start = Coord(x=1, y=2)
    end = Coord(x=4, y=5)
line = Line()
line.start.x = line.end.x = 10
assert line.start.x == line.end.x == 10
line.reset()
assert line.start.x == 1
assert line.end.x == 4

Any number of abstract params may be passed in to perform a partial reset of only the specified params:

line.start.x = line.end.x = 10
line.reset(Line.start.x)  # resets just start.x
assert line.start.x == 1
assert line.end.x == 10

line.reset(Line.end)      # resets the entire end point
assert line.end.x == 4

line.start.y = line.end.y = 10
line.reset(Line.start.y, Line.end.y)  # resets the y-coord of both
assert line.start.y == 2
assert line.end.y == 5
run()
runCmd(cmd)
runPreprocessing(callback=None, calling_context=None)

Run the preprocessors one-by-one. By default, any failing preprocessor will raise a TaskFailure exception and terminate processing. This behavior may be customized by supplying a callback function which will be called after each preprocessor with the result of that preprocessor.

This method is “final” so that all preprocessing logic will be enclosed in the try/finally block.

Parameters

  • callback – a function that takes result and returns a bool that indicates whether to continue on to the next preprocessor

  • calling_context – specify a value here to indicate the context in which this preprocessing is being called. This value will be stored in an instance variable, self.calling_context, which can be accessed from any preprocessor method on this task. Typically this value will be either self.GUI, self.CMDLINE, or None, but any value may be supplied here and checked for in the preprocessor methods. self.calling_context always reverts back to None at the end of runPreprocessing.

sender(self) → QObject
senderSignalIndex(self) → int
setObjectName(self, name: str)
classmethod setParamValue(obj, value)

Set the value of a param on an object by specifying the instance and the value:

# Setting the param value of a basic param
a = Atom()
Atom.coord.x.setParamValue(a, 5)
assert a.coord.x == 5

# setParamValue can also be used to set the value of CompoundParams
c = Coord()
c.x = 10
atom.coord.setParamValue(a, c)
assert atom.coord.x == 10
Parameters

  • param – The owner param to set a subparam value of.

  • value – The value to set the subparam value to.

setParent(self, a0: QObject)
setProperty(self, name: str, value: Any) → bool
classmethod setReference(param1, param2)

Call this class method from configureParam to indicate that two params should be kept in sync. The initial values will start with the default value of param1. Example:

class Square(CompoundParam):
    width: float = 5
    height: float = 10

    @classmethod
    def configureParam(cls):
        super().configureParam()
        cls.setReference(cls.width, cls.height)

square = Square()
assert square.width == square.height == 5 # Default value of width
                                          # takes priority
square.height = 7
assert square.width == square.height == 7
square.width = 6
assert square.width == square.height == 6
Parameters

  • param1 – The first abstract param to keep synced

  • param2 – The second abstract param. After instantiation, this param will take on the value of param1.

setValue(value=None, **kwargs)

Set the value of this CompoundParam to match value.

Parameters

  • value – The value to set this CompoundParam to. It should be the same type as this CompoundParam.

  • kwargs – For internal use only.

signalsBlocked(self) → bool
skip_eq_check()
specifyTaskDir(taskdir_spec)

Specify the taskdir creation behavior. Use one of the following options:

A directory name (string). This may be a relative or absolute path

None - no taskdir is requested. The task will use the CWD as its taskdir

AUTO_TASKDIR - a new subdirectory will be created in the CWD using the task name as the directory name.

TEMP_TASKDIR - a temporary directory will be created in the schrodinger temp dir. This directory is cleaned up when the task is deleted.

Parameters

taskdir_spec – one of the four options listed above

startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int
staticMetaObject = <PyQt6.QtCore.QMetaObject object>
status: schrodinger.tasks.tasks.Status
statusChanged
statusReplaced
taskDirSetting()

Returns the taskdir spec. See specifyTaskDir() for details.

taskDone
taskFailed
taskStarted
thread(self) → QThread
timerEvent(self, a0: QTimerEvent)
toDict()

Return a dictionary version of this CompoundParam. The returned dictionary is fully nested and contains no CompoundParam instances

a = Atom()
a_dict = a.toDict()
assert a_dict['coord']['x'] == 0
assert a_dict['coord'] == {'x':0, 'y':0}
toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Returns a JSON representation of this value object.

Warning

This should never be called directly.

tr(sourceText: str, disambiguation: typing.Optional[str] = None, n: int = - 1) → str
valueChanged
wait(timeout=None)

Block until the task is finished executing or timeout seconds have passed.

Warning

This should not be called directly from GUI code - see PANEL-18317. It is safe to call inside a subprocess or job. Run git grep "task.wait(" to see safe examples annotated with “# OK”.

Parameters

timeout (NoneType or int) – Amount of time in seconds to wait before timing out. If None or a negative number, this method will wait until the task is finished.

schrodinger.tasks.tasks.get_schrodinger_run()
class schrodinger.tasks.tasks.BlockingMixin

Bases: object

Compatible with subclasses of AbstractFunctionTask.

class schrodinger.tasks.tasks.ThreadMixin(*args, **kwargs)

Bases: schrodinger.tasks.tasks._SaveTaskReferenceMixin

MAX_THREAD_TASKS = 500
__init__(*args, **kwargs)
qthread

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
kill()

@overrides: AbstractTask

Killing threads is dangerous and can leading to deadlocking on Windows, so we intentionally leave it unimplemented rather than using QThread.terminate.

start(*args, **kwargs)
exception schrodinger.tasks.tasks.QProcessError(message)

Bases: Exception

__init__(message)
args
with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

exception schrodinger.tasks.tasks.QProcessFailedToStartError(message)

Bases: schrodinger.tasks.tasks.QProcessError

__init__(message)
args
with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

exception schrodinger.tasks.tasks.QProcessCrashedError(message)

Bases: schrodinger.tasks.tasks.QProcessError

__init__(message)
args
with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

exception schrodinger.tasks.tasks.QProcessTimedout(message)

Bases: schrodinger.tasks.tasks.QProcessError

__init__(message)
args
with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

exception schrodinger.tasks.tasks.QProcessWriteError(message)

Bases: schrodinger.tasks.tasks.QProcessError

__init__(message)
args
with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

exception schrodinger.tasks.tasks.QProcessReadError(message)

Bases: schrodinger.tasks.tasks.QProcessError

__init__(message)
args
with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

exception schrodinger.tasks.tasks.QProcessUnknownError(message)

Bases: schrodinger.tasks.tasks.QProcessError

__init__(message)
args
with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

class schrodinger.tasks.tasks.SubprocessMixin(*args, **kwargs)

Bases: schrodinger.tasks.tasks._SaveTaskReferenceMixin

__init__(*args, **kwargs)
cmd

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
exit_code

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
qprocess

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
printingOutputToTerminal()
Returns

whether the StdOut and StdErr output from this task is being printed to the terminal

Return type

bool

setPrintingOutputToTerminal(print_to_terminal)

Set this task to print StdOut and StdErr output to terminal, or not. This must be set before starting the task to enable terminal output.

Parameters

print_to_terminal (bool) – whether to send process output to terminal

runCmd(cmd)
getLogFilename()
getLogAsString() → str
kill()

@overrides: AbstractTask

Kill the subprocess and set the status to FAILED.

start(*args, **kwargs)
class schrodinger.tasks.tasks.BlockingFunctionTask(*args, _param_type=<object object>, **kwargs)

Bases: schrodinger.tasks.tasks.BlockingMixin, schrodinger.tasks.tasks._AbstractFunctionTask

A task that simply runs a function and blocks for the duration of it. To use, implement mainFunction.

AUTO_TASKDIR = 1
CMDLINE = 1
DEFAULT_TASKDIR_SETTING = None
DONE = 3
DataClass

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
FAILED = 2
GUI = 2
INTERRUPT_ENABLED = False
RUNNING = 1
TEMP_TASKDIR = 2
WAITING = 0
__init__(*args, **kwargs)
addFuncToGroup(func, group=None, order=None)

Adds a function to the specified chain. Typically used for adding functions that are not methods of this object.

The function may optionally be decorated with a FuncGroupMarker. If so, the default group and order will be determined by the decorator. Any group or order explicitly passed in to addFuncToGroup will take precedence over the decorator settings.

Parameters

  • func – the function to add

  • group (FuncGroupMarker or None) – the group marker. If the function is decorated with a FuncGoupMarker, that group marker will be the default.

  • order (float or None) – the sorting order. If the function is decorated with a FuncGoupMarker, the order specified in the decorator will be the default.

addLicenseReservation(license, num_tokens=1)

Add a license reservation for this job. This information is used by job control to ensure the job is only started once the required licenses become available.

In a preprocessor, (i.e. before launching the backend), a reservation should be added for each license that will be checked out directly by that backend. Example:

class GlideTask(ComboJobTask):

    @preprocessor
    def _reserveGlideLicense(self):
        # Reserve a Glide license.
        self.addLicenseReservation(license.GLIDE_MAIN)

    def mainFunction(self):
        # Check out the Glide license
        lic = license.License(license.GLIDE_MAIN)

        # ... Do computations requiring Glide ...

        lic.checkin()

Licenses that will be checked out by subjobs of this job do not need reservations added here; subjobs are responsible for their own license reservations.

Parameters

  • license (module-constant from schrodinger.utils.license (e.g. license.AUTODESIGNER)) – a license that will be used by the backend

  • num_tokens (int) – number of tokens for this license reservations

addPostprocessor(func, order=0)

Adds a postproceessor function to this task instance. If the function has been decorated with @postprocessor, the order specified by the decorator will be used.

Parameters

  • func (typing.Callable) – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

addPreprocessor(func, order=None)

Adds a preproceessor function to this task instance. If the function has been decorated with @preprocessor, the order specified by the decorator will be used as the default.

Parameters

  • func – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

classmethod addSubParam(name, param, update_owner=True)
blockSignals(self, b: bool) → bool
block_signal_propagation()
calling_context: schrodinger.tasks.tasks.CallingContext
calling_contextChanged
calling_contextReplaced
childEvent(self, a0: QChildEvent)
children(self) → List[QObject]
classmethod configureParam()

Override this class method to set up the abstract param class (e.g. setParamReference on child params.)

connectNotify(self, signal: QMetaMethod)
customEvent(self, a0: QEvent)
classmethod defaultValue()

Returns the default value for this abstract param:

default_atom = Atom.defaultValue()
assert Atom.coord.x == 0
deleteLater(self)
destroyed

destroyed(self, object: typing.Optional[QObject] = None) [signal]

disconnect(a0: QMetaObject.Connection) → bool
disconnect(self) → None
disconnectNotify(self, signal: QMetaMethod)
dumpObjectInfo(self)
dumpObjectTree(self)
dynamicPropertyNames(self) → List[QByteArray]
event(self, a0: QEvent) → bool
eventFilter(self, a0: QObject, a1: QEvent) → bool
failure_info: schrodinger.tasks.tasks.FailureInfo

Dataclass for task failure information.

Printing an instance of this class will provide the minimum necessary human-readable representation of a recorded failure.

failure_infoChanged
failure_infoReplaced
findChild(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChild(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChildren(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonFilename(filename)
classmethod fromJsonImplementation(json_dict)

Sets the value of this compound param value object from a JSON dict.

Warning

This should never be called directly.

getAbstractParam()

Return the corresponding abstract param for this instance.

getAddedFuncs(group=None)
getDebugString()
getFuncGroup(group=None)

Retrieve the functions belonging to the specified group.

Parameters

group (FuncGroupMarker) – the group marker

Returns

the functions in the specified group, in order

Return type

list

classmethod getJsonBlacklist()

Override to customize what params are serialized.

Implementations should return a list of abstract params that should be omitted from serialization.

..NOTE

Returned abstract params must be direct child params of cls, e.g. cls.name, not cls.coord.x.

classmethod getParamSignal(obj, signal_type='Changed')
classmethod getParamValue(obj)

Enables access to a param value on a compound param via an abstract param reference:

a = Atom()
assert Atom.coord.x.getParamValue(a) == 0 # ints default to 0
a.coord.x = 3
assert Atom.coord.x.getParamValue(a) == 3
Parameters

param (CompoundParam) – The owner param to get a param value from

classmethod getSubParam(name)

Get the value of a subparam using the string name:

c = Coord()
assert c.getSubParam('x') == 0

Note

Using the string name to access params is generally discouraged, but can be useful for serializing/deserializing param data.

Parameters

name (str) – The name of the subparam to get the value for.

classmethod getSubParams()

Return a dictionary mapping subparam names to their values.

getTaskDir()

Returns the full path of the task directory. This is only available if the task directory exists (after creation of the taskdir or, if no task dir is specified, any time).

getTaskFilename(fname)

Return the appropriate absolute path for an input or output file in the taskdir.

getTypeHint()
get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

guard()

Context manager that saves any Exception raised inside

inherits(self, classname: str) → bool
initAbstract()
initConcrete()

Override to customize initialization of concrete params.

initializeValue()

@overrides: parameters.CompoundParam

input: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
inputChanged
inputReplaced
installEventFilter(self, a0: QObject)
classmethod isAbstract()

Whether the param is an “abstract” param.

isDebugEnabled()
isDefault()

Whether the current value of this instance matches the default value.

isInterruptionRequested()
isRunning()
isSignalConnected(self, signal: QMetaMethod) → bool
isStartable()
isWidgetType(self) → bool
isWindowType(self) → bool
kill()

Implementations are responsible for immediately stopping the task. No threads or processes should be running after this method is complete.

This method should be called sparingly since in many contexts the task will be forced to terminate without a chance to clean up or free resources.

killTimer(self, id: int)
mainFunction()
max_progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
max_progressChanged
max_progressReplaced
metaObject(self) → QMetaObject
moveToThread(self, thread: QThread)
name: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
nameChanged
nameReplaced
objectName(self) → str
objectNameChanged

objectNameChanged(self, objectName: str) [signal]

output: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
outputChanged
outputReplaced
classmethod owner()

Get the owner of the param:

# Can be called on an abstract param:
assert Coord.x.owner() == Coord

# ...or on an instance of a CompoundParam
a = Atom()
assert a.coord.owner() == a
classmethod ownerChain()

Returns a list of param owners starting from the toplevel param and ending with self. Examples:

foo.bar.atom.coord.ownerChain() will return [foo, bar, atom, coord] where every item is a concrete param.

Foo.bar.atom.coord.x.ownerChain() will return [Foo, Foo.bar, Foo.atom.coord, Foo.atom.coord.x] where every item is an abstract params.

classmethod paramName()

Get the name of the param:

# Can be called on an abstract param:
print(Coord.x.paramName()) # 'x'

# ...or on an instance of a CompoundParam
a = Atom()
a.coord.paramName() # 'coord'
parent(self) → QObject
postprocessors()
Returns

A list of postprocessors, both decorated methods on the task and external functions that have been added via addPostprocessor()

Return type

list[typing.Callable]

preprocessors()
Returns

A list of preprocessors (both decorated methods on the task and external functions that have been added via addPreprocessor)

printDebug(*args)
processFuncChain(chain=None, result_callback=None)

Execute each function in the specified chain sequentially in order.

The result_callback is called after each function with the return value of that function. This can be used to respond to the return value (e.g. present information to the user, get user feedback, log the result, etc.)

The return value of the result_callback determines whether processing will proceeed to the next function.

Parameters

  • chain (FuncChainDecorator) – which chain to process

  • result_callback – the callback that will get called with the result of each function in the chain

Returns

a list of the results from the functions

progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progressChanged
progressReplaced
progress_string: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progress_stringChanged
progress_stringReplaced
property(self, name: str) → Any
pyqtConfigure(...)

Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

receivers(self, signal: PYQT_SIGNAL) → int
removeEventFilter(self, a0: QObject)
replicate()

Create a new task with the same input and settings (but no output)

requestInterruption()

Request the task to stop.

To enable this feature, subclasses should periodically check whether an interruption has been requested and terminate if it has been. If such logic has been included, INTERRUPT_ENABLED should be set to True.

reset(*args, **kwargs)

Resets this compound param to its default value:

class Line(CompoundParam):
    start = Coord(x=1, y=2)
    end = Coord(x=4, y=5)
line = Line()
line.start.x = line.end.x = 10
assert line.start.x == line.end.x == 10
line.reset()
assert line.start.x == 1
assert line.end.x == 4

Any number of abstract params may be passed in to perform a partial reset of only the specified params:

line.start.x = line.end.x = 10
line.reset(Line.start.x)  # resets just start.x
assert line.start.x == 1
assert line.end.x == 10

line.reset(Line.end)      # resets the entire end point
assert line.end.x == 4

line.start.y = line.end.y = 10
line.reset(Line.start.y, Line.end.y)  # resets the y-coord of both
assert line.start.y == 2
assert line.end.y == 5
run()
runPreprocessing(callback=None, calling_context=None)

Run the preprocessors one-by-one. By default, any failing preprocessor will raise a TaskFailure exception and terminate processing. This behavior may be customized by supplying a callback function which will be called after each preprocessor with the result of that preprocessor.

This method is “final” so that all preprocessing logic will be enclosed in the try/finally block.

Parameters

  • callback – a function that takes result and returns a bool that indicates whether to continue on to the next preprocessor

  • calling_context – specify a value here to indicate the context in which this preprocessing is being called. This value will be stored in an instance variable, self.calling_context, which can be accessed from any preprocessor method on this task. Typically this value will be either self.GUI, self.CMDLINE, or None, but any value may be supplied here and checked for in the preprocessor methods. self.calling_context always reverts back to None at the end of runPreprocessing.

sender(self) → QObject
senderSignalIndex(self) → int
setObjectName(self, name: str)
classmethod setParamValue(obj, value)

Set the value of a param on an object by specifying the instance and the value:

# Setting the param value of a basic param
a = Atom()
Atom.coord.x.setParamValue(a, 5)
assert a.coord.x == 5

# setParamValue can also be used to set the value of CompoundParams
c = Coord()
c.x = 10
atom.coord.setParamValue(a, c)
assert atom.coord.x == 10
Parameters

  • param – The owner param to set a subparam value of.

  • value – The value to set the subparam value to.

setParent(self, a0: QObject)
setProperty(self, name: str, value: Any) → bool
classmethod setReference(param1, param2)

Call this class method from configureParam to indicate that two params should be kept in sync. The initial values will start with the default value of param1. Example:

class Square(CompoundParam):
    width: float = 5
    height: float = 10

    @classmethod
    def configureParam(cls):
        super().configureParam()
        cls.setReference(cls.width, cls.height)

square = Square()
assert square.width == square.height == 5 # Default value of width
                                          # takes priority
square.height = 7
assert square.width == square.height == 7
square.width = 6
assert square.width == square.height == 6
Parameters

  • param1 – The first abstract param to keep synced

  • param2 – The second abstract param. After instantiation, this param will take on the value of param1.

setValue(value=None, **kwargs)

Set the value of this CompoundParam to match value.

Parameters

  • value – The value to set this CompoundParam to. It should be the same type as this CompoundParam.

  • kwargs – For internal use only.

signalsBlocked(self) → bool
skip_eq_check()
specifyTaskDir(taskdir_spec)

Specify the taskdir creation behavior. Use one of the following options:

A directory name (string). This may be a relative or absolute path

None - no taskdir is requested. The task will use the CWD as its taskdir

AUTO_TASKDIR - a new subdirectory will be created in the CWD using the task name as the directory name.

TEMP_TASKDIR - a temporary directory will be created in the schrodinger temp dir. This directory is cleaned up when the task is deleted.

Parameters

taskdir_spec – one of the four options listed above

start(skip_preprocessing=False)

This is the main method for starting a task. Start will check if a task is not already running, run preprocessing, and then run the task.

Failures in preprocessing will interrupt the task start, and the task will never enter the RUNNING state.

Parameters

skip_preprocessing (bool) – whether to skip preprocessing. This can be useful if preprocessing was already performed prior to calling start.

startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int
staticMetaObject = <PyQt6.QtCore.QMetaObject object>
status: schrodinger.tasks.tasks.Status
statusChanged
statusReplaced
taskDirSetting()

Returns the taskdir spec. See specifyTaskDir() for details.

taskDone
taskFailed
taskStarted
thread(self) → QThread
timerEvent(self, a0: QTimerEvent)
toDict()

Return a dictionary version of this CompoundParam. The returned dictionary is fully nested and contains no CompoundParam instances

a = Atom()
a_dict = a.toDict()
assert a_dict['coord']['x'] == 0
assert a_dict['coord'] == {'x':0, 'y':0}
toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Returns a JSON representation of this value object.

Warning

This should never be called directly.

tr(sourceText: str, disambiguation: typing.Optional[str] = None, n: int = - 1) → str
valueChanged
wait(timeout=None)

Block until the task is finished executing or timeout seconds have passed.

Warning

This should not be called directly from GUI code - see PANEL-18317. It is safe to call inside a subprocess or job. Run git grep "task.wait(" to see safe examples annotated with “# OK”.

Parameters

timeout (NoneType or int) – Amount of time in seconds to wait before timing out. If None or a negative number, this method will wait until the task is finished.

class schrodinger.tasks.tasks.ThreadFunctionTask(*args, _param_type=<object object>, **kwargs)

Bases: schrodinger.tasks.tasks.ThreadMixin, schrodinger.tasks.tasks._AbstractFunctionTask

A task that runs a function in a separate thread. To use, implement mainFunction.

Note: this class should not be used except in limited circumstances, as much of our internal code is not thread safe (e.g. structure.Structure - see PANEL-16783). New implementations will have to register their usage in test_thread_usage.py, and include the following warning in the mainFunction of the task:

# This logic will be run in a worker thread and must not # access thread-unsafe libraries, including structure.Structure.

AUTO_TASKDIR = 1
CMDLINE = 1
DEFAULT_TASKDIR_SETTING = None
DONE = 3
DataClass

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
FAILED = 2
GUI = 2
INTERRUPT_ENABLED = False
MAX_THREAD_TASKS = 500
RUNNING = 1
TEMP_TASKDIR = 2
WAITING = 0
__init__(*args, **kwargs)
addFuncToGroup(func, group=None, order=None)

Adds a function to the specified chain. Typically used for adding functions that are not methods of this object.

The function may optionally be decorated with a FuncGroupMarker. If so, the default group and order will be determined by the decorator. Any group or order explicitly passed in to addFuncToGroup will take precedence over the decorator settings.

Parameters

  • func – the function to add

  • group (FuncGroupMarker or None) – the group marker. If the function is decorated with a FuncGoupMarker, that group marker will be the default.

  • order (float or None) – the sorting order. If the function is decorated with a FuncGoupMarker, the order specified in the decorator will be the default.

addLicenseReservation(license, num_tokens=1)

Add a license reservation for this job. This information is used by job control to ensure the job is only started once the required licenses become available.

In a preprocessor, (i.e. before launching the backend), a reservation should be added for each license that will be checked out directly by that backend. Example:

class GlideTask(ComboJobTask):

    @preprocessor
    def _reserveGlideLicense(self):
        # Reserve a Glide license.
        self.addLicenseReservation(license.GLIDE_MAIN)

    def mainFunction(self):
        # Check out the Glide license
        lic = license.License(license.GLIDE_MAIN)

        # ... Do computations requiring Glide ...

        lic.checkin()

Licenses that will be checked out by subjobs of this job do not need reservations added here; subjobs are responsible for their own license reservations.

Parameters

  • license (module-constant from schrodinger.utils.license (e.g. license.AUTODESIGNER)) – a license that will be used by the backend

  • num_tokens (int) – number of tokens for this license reservations

addPostprocessor(func, order=0)

Adds a postproceessor function to this task instance. If the function has been decorated with @postprocessor, the order specified by the decorator will be used.

Parameters

  • func (typing.Callable) – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

addPreprocessor(func, order=None)

Adds a preproceessor function to this task instance. If the function has been decorated with @preprocessor, the order specified by the decorator will be used as the default.

Parameters

  • func – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

classmethod addSubParam(name, param, update_owner=True)
blockSignals(self, b: bool) → bool
block_signal_propagation()
calling_context: schrodinger.tasks.tasks.CallingContext
calling_contextChanged
calling_contextReplaced
childEvent(self, a0: QChildEvent)
children(self) → List[QObject]
classmethod configureParam()

Override this class method to set up the abstract param class (e.g. setParamReference on child params.)

connectNotify(self, signal: QMetaMethod)
customEvent(self, a0: QEvent)
classmethod defaultValue()

Returns the default value for this abstract param:

default_atom = Atom.defaultValue()
assert Atom.coord.x == 0
deleteLater(self)
destroyed

destroyed(self, object: typing.Optional[QObject] = None) [signal]

disconnect(a0: QMetaObject.Connection) → bool
disconnect(self) → None
disconnectNotify(self, signal: QMetaMethod)
dumpObjectInfo(self)
dumpObjectTree(self)
dynamicPropertyNames(self) → List[QByteArray]
event(self, a0: QEvent) → bool
eventFilter(self, a0: QObject, a1: QEvent) → bool
failure_info: schrodinger.tasks.tasks.FailureInfo

Dataclass for task failure information.

Printing an instance of this class will provide the minimum necessary human-readable representation of a recorded failure.

failure_infoChanged
failure_infoReplaced
findChild(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChild(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChildren(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonFilename(filename)
classmethod fromJsonImplementation(json_dict)

Sets the value of this compound param value object from a JSON dict.

Warning

This should never be called directly.

getAbstractParam()

Return the corresponding abstract param for this instance.

getAddedFuncs(group=None)
getDebugString()
getFuncGroup(group=None)

Retrieve the functions belonging to the specified group.

Parameters

group (FuncGroupMarker) – the group marker

Returns

the functions in the specified group, in order

Return type

list

classmethod getJsonBlacklist()

Override to customize what params are serialized.

Implementations should return a list of abstract params that should be omitted from serialization.

..NOTE

Returned abstract params must be direct child params of cls, e.g. cls.name, not cls.coord.x.

classmethod getParamSignal(obj, signal_type='Changed')
classmethod getParamValue(obj)

Enables access to a param value on a compound param via an abstract param reference:

a = Atom()
assert Atom.coord.x.getParamValue(a) == 0 # ints default to 0
a.coord.x = 3
assert Atom.coord.x.getParamValue(a) == 3
Parameters

param (CompoundParam) – The owner param to get a param value from

classmethod getSubParam(name)

Get the value of a subparam using the string name:

c = Coord()
assert c.getSubParam('x') == 0

Note

Using the string name to access params is generally discouraged, but can be useful for serializing/deserializing param data.

Parameters

name (str) – The name of the subparam to get the value for.

classmethod getSubParams()

Return a dictionary mapping subparam names to their values.

getTaskDir()

Returns the full path of the task directory. This is only available if the task directory exists (after creation of the taskdir or, if no task dir is specified, any time).

getTaskFilename(fname)

Return the appropriate absolute path for an input or output file in the taskdir.

getTypeHint()
get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

guard()

Context manager that saves any Exception raised inside

inherits(self, classname: str) → bool
initAbstract()
initConcrete()

Override to customize initialization of concrete params.

initializeValue()

@overrides: parameters.CompoundParam

input: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
inputChanged
inputReplaced
installEventFilter(self, a0: QObject)
classmethod isAbstract()

Whether the param is an “abstract” param.

isDebugEnabled()
isDefault()

Whether the current value of this instance matches the default value.

isInterruptionRequested()
isRunning()
isSignalConnected(self, signal: QMetaMethod) → bool
isStartable()
isWidgetType(self) → bool
isWindowType(self) → bool
kill()

@overrides: AbstractTask

Killing threads is dangerous and can leading to deadlocking on Windows, so we intentionally leave it unimplemented rather than using QThread.terminate.

killTimer(self, id: int)
mainFunction()
max_progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
max_progressChanged
max_progressReplaced
metaObject(self) → QMetaObject
moveToThread(self, thread: QThread)
name: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
nameChanged
nameReplaced
objectName(self) → str
objectNameChanged

objectNameChanged(self, objectName: str) [signal]

output: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
outputChanged
outputReplaced
classmethod owner()

Get the owner of the param:

# Can be called on an abstract param:
assert Coord.x.owner() == Coord

# ...or on an instance of a CompoundParam
a = Atom()
assert a.coord.owner() == a
classmethod ownerChain()

Returns a list of param owners starting from the toplevel param and ending with self. Examples:

foo.bar.atom.coord.ownerChain() will return [foo, bar, atom, coord] where every item is a concrete param.

Foo.bar.atom.coord.x.ownerChain() will return [Foo, Foo.bar, Foo.atom.coord, Foo.atom.coord.x] where every item is an abstract params.

classmethod paramName()

Get the name of the param:

# Can be called on an abstract param:
print(Coord.x.paramName()) # 'x'

# ...or on an instance of a CompoundParam
a = Atom()
a.coord.paramName() # 'coord'
parent(self) → QObject
postprocessors()
Returns

A list of postprocessors, both decorated methods on the task and external functions that have been added via addPostprocessor()

Return type

list[typing.Callable]

preprocessors()
Returns

A list of preprocessors (both decorated methods on the task and external functions that have been added via addPreprocessor)

printDebug(*args)
processFuncChain(chain=None, result_callback=None)

Execute each function in the specified chain sequentially in order.

The result_callback is called after each function with the return value of that function. This can be used to respond to the return value (e.g. present information to the user, get user feedback, log the result, etc.)

The return value of the result_callback determines whether processing will proceeed to the next function.

Parameters

  • chain (FuncChainDecorator) – which chain to process

  • result_callback – the callback that will get called with the result of each function in the chain

Returns

a list of the results from the functions

progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progressChanged
progressReplaced
progress_string: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progress_stringChanged
progress_stringReplaced
property(self, name: str) → Any
pyqtConfigure(...)

Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

qthread

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
receivers(self, signal: PYQT_SIGNAL) → int
removeEventFilter(self, a0: QObject)
replicate()

Create a new task with the same input and settings (but no output)

requestInterruption()

Request the task to stop.

To enable this feature, subclasses should periodically check whether an interruption has been requested and terminate if it has been. If such logic has been included, INTERRUPT_ENABLED should be set to True.

reset(*args, **kwargs)

Resets this compound param to its default value:

class Line(CompoundParam):
    start = Coord(x=1, y=2)
    end = Coord(x=4, y=5)
line = Line()
line.start.x = line.end.x = 10
assert line.start.x == line.end.x == 10
line.reset()
assert line.start.x == 1
assert line.end.x == 4

Any number of abstract params may be passed in to perform a partial reset of only the specified params:

line.start.x = line.end.x = 10
line.reset(Line.start.x)  # resets just start.x
assert line.start.x == 1
assert line.end.x == 10

line.reset(Line.end)      # resets the entire end point
assert line.end.x == 4

line.start.y = line.end.y = 10
line.reset(Line.start.y, Line.end.y)  # resets the y-coord of both
assert line.start.y == 2
assert line.end.y == 5
run()
runPreprocessing(callback=None, calling_context=None)

Run the preprocessors one-by-one. By default, any failing preprocessor will raise a TaskFailure exception and terminate processing. This behavior may be customized by supplying a callback function which will be called after each preprocessor with the result of that preprocessor.

This method is “final” so that all preprocessing logic will be enclosed in the try/finally block.

Parameters

  • callback – a function that takes result and returns a bool that indicates whether to continue on to the next preprocessor

  • calling_context – specify a value here to indicate the context in which this preprocessing is being called. This value will be stored in an instance variable, self.calling_context, which can be accessed from any preprocessor method on this task. Typically this value will be either self.GUI, self.CMDLINE, or None, but any value may be supplied here and checked for in the preprocessor methods. self.calling_context always reverts back to None at the end of runPreprocessing.

sender(self) → QObject
senderSignalIndex(self) → int
setObjectName(self, name: str)
classmethod setParamValue(obj, value)

Set the value of a param on an object by specifying the instance and the value:

# Setting the param value of a basic param
a = Atom()
Atom.coord.x.setParamValue(a, 5)
assert a.coord.x == 5

# setParamValue can also be used to set the value of CompoundParams
c = Coord()
c.x = 10
atom.coord.setParamValue(a, c)
assert atom.coord.x == 10
Parameters

  • param – The owner param to set a subparam value of.

  • value – The value to set the subparam value to.

setParent(self, a0: QObject)
setProperty(self, name: str, value: Any) → bool
classmethod setReference(param1, param2)

Call this class method from configureParam to indicate that two params should be kept in sync. The initial values will start with the default value of param1. Example:

class Square(CompoundParam):
    width: float = 5
    height: float = 10

    @classmethod
    def configureParam(cls):
        super().configureParam()
        cls.setReference(cls.width, cls.height)

square = Square()
assert square.width == square.height == 5 # Default value of width
                                          # takes priority
square.height = 7
assert square.width == square.height == 7
square.width = 6
assert square.width == square.height == 6
Parameters

  • param1 – The first abstract param to keep synced

  • param2 – The second abstract param. After instantiation, this param will take on the value of param1.

setValue(value=None, **kwargs)

Set the value of this CompoundParam to match value.

Parameters

  • value – The value to set this CompoundParam to. It should be the same type as this CompoundParam.

  • kwargs – For internal use only.

signalsBlocked(self) → bool
skip_eq_check()
specifyTaskDir(taskdir_spec)

Specify the taskdir creation behavior. Use one of the following options:

A directory name (string). This may be a relative or absolute path

None - no taskdir is requested. The task will use the CWD as its taskdir

AUTO_TASKDIR - a new subdirectory will be created in the CWD using the task name as the directory name.

TEMP_TASKDIR - a temporary directory will be created in the schrodinger temp dir. This directory is cleaned up when the task is deleted.

Parameters

taskdir_spec – one of the four options listed above

start(*args, **kwargs)

This is the main method for starting a task. Start will check if a task is not already running, run preprocessing, and then run the task.

Failures in preprocessing will interrupt the task start, and the task will never enter the RUNNING state.

Parameters

skip_preprocessing (bool) – whether to skip preprocessing. This can be useful if preprocessing was already performed prior to calling start.

startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int
staticMetaObject = <PyQt6.QtCore.QMetaObject object>
status: schrodinger.tasks.tasks.Status
statusChanged
statusReplaced
taskDirSetting()

Returns the taskdir spec. See specifyTaskDir() for details.

taskDone
taskFailed
taskStarted
thread(self) → QThread
timerEvent(self, a0: QTimerEvent)
toDict()

Return a dictionary version of this CompoundParam. The returned dictionary is fully nested and contains no CompoundParam instances

a = Atom()
a_dict = a.toDict()
assert a_dict['coord']['x'] == 0
assert a_dict['coord'] == {'x':0, 'y':0}
toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Returns a JSON representation of this value object.

Warning

This should never be called directly.

tr(sourceText: str, disambiguation: typing.Optional[str] = None, n: int = - 1) → str
valueChanged
wait(timeout=None)

Block until the task is finished executing or timeout seconds have passed.

Warning

This should not be called directly from GUI code - see PANEL-18317. It is safe to call inside a subprocess or job. Run git grep "task.wait(" to see safe examples annotated with “# OK”.

Parameters

timeout (NoneType or int) – Amount of time in seconds to wait before timing out. If None or a negative number, this method will wait until the task is finished.

class schrodinger.tasks.tasks.SubprocessCmdTask(*args, _param_type=<object object>, **kwargs)

Bases: schrodinger.tasks.tasks.SubprocessMixin, schrodinger.tasks.tasks.AbstractCmdTask

A task that launches a subprocess. To use, implement makeCmd and return a list of strings.

AUTO_TASKDIR = 1
CMDLINE = 1
DEFAULT_TASKDIR_SETTING = None
DONE = 3
DataClass

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
FAILED = 2
GUI = 2
INTERRUPT_ENABLED = False
RUNNING = 1
TEMP_TASKDIR = 2
WAITING = 0
__init__(*args, **kwargs)
addFuncToGroup(func, group=None, order=None)

Adds a function to the specified chain. Typically used for adding functions that are not methods of this object.

The function may optionally be decorated with a FuncGroupMarker. If so, the default group and order will be determined by the decorator. Any group or order explicitly passed in to addFuncToGroup will take precedence over the decorator settings.

Parameters

  • func – the function to add

  • group (FuncGroupMarker or None) – the group marker. If the function is decorated with a FuncGoupMarker, that group marker will be the default.

  • order (float or None) – the sorting order. If the function is decorated with a FuncGoupMarker, the order specified in the decorator will be the default.

addLicenseReservation(license, num_tokens=1)

Add a license reservation for this job. This information is used by job control to ensure the job is only started once the required licenses become available.

In a preprocessor, (i.e. before launching the backend), a reservation should be added for each license that will be checked out directly by that backend. Example:

class GlideTask(ComboJobTask):

    @preprocessor
    def _reserveGlideLicense(self):
        # Reserve a Glide license.
        self.addLicenseReservation(license.GLIDE_MAIN)

    def mainFunction(self):
        # Check out the Glide license
        lic = license.License(license.GLIDE_MAIN)

        # ... Do computations requiring Glide ...

        lic.checkin()

Licenses that will be checked out by subjobs of this job do not need reservations added here; subjobs are responsible for their own license reservations.

Parameters

  • license (module-constant from schrodinger.utils.license (e.g. license.AUTODESIGNER)) – a license that will be used by the backend

  • num_tokens (int) – number of tokens for this license reservations

addPostprocessor(func, order=0)

Adds a postproceessor function to this task instance. If the function has been decorated with @postprocessor, the order specified by the decorator will be used.

Parameters

  • func (typing.Callable) – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

addPreprocessor(func, order=None)

Adds a preproceessor function to this task instance. If the function has been decorated with @preprocessor, the order specified by the decorator will be used as the default.

Parameters

  • func – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

classmethod addSubParam(name, param, update_owner=True)
blockSignals(self, b: bool) → bool
block_signal_propagation()
calling_context: schrodinger.tasks.tasks.CallingContext
calling_contextChanged
calling_contextReplaced
childEvent(self, a0: QChildEvent)
children(self) → List[QObject]
cmd

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
classmethod configureParam()

Override this class method to set up the abstract param class (e.g. setParamReference on child params.)

connectNotify(self, signal: QMetaMethod)
customEvent(self, a0: QEvent)
classmethod defaultValue()

Returns the default value for this abstract param:

default_atom = Atom.defaultValue()
assert Atom.coord.x == 0
deleteLater(self)
destroyed

destroyed(self, object: typing.Optional[QObject] = None) [signal]

disconnect(a0: QMetaObject.Connection) → bool
disconnect(self) → None
disconnectNotify(self, signal: QMetaMethod)
dumpObjectInfo(self)
dumpObjectTree(self)
dynamicPropertyNames(self) → List[QByteArray]
event(self, a0: QEvent) → bool
eventFilter(self, a0: QObject, a1: QEvent) → bool
exit_code

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
failure_info: schrodinger.tasks.tasks.FailureInfo

Dataclass for task failure information.

Printing an instance of this class will provide the minimum necessary human-readable representation of a recorded failure.

failure_infoChanged
failure_infoReplaced
findChild(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChild(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChildren(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonFilename(filename)
classmethod fromJsonImplementation(json_dict)

Sets the value of this compound param value object from a JSON dict.

Warning

This should never be called directly.

getAbstractParam()

Return the corresponding abstract param for this instance.

getAddedFuncs(group=None)
getDebugString()
getFuncGroup(group=None)

Retrieve the functions belonging to the specified group.

Parameters

group (FuncGroupMarker) – the group marker

Returns

the functions in the specified group, in order

Return type

list

classmethod getJsonBlacklist()

Override to customize what params are serialized.

Implementations should return a list of abstract params that should be omitted from serialization.

..NOTE

Returned abstract params must be direct child params of cls, e.g. cls.name, not cls.coord.x.

getLogAsString() → str
getLogFilename()
classmethod getParamSignal(obj, signal_type='Changed')
classmethod getParamValue(obj)

Enables access to a param value on a compound param via an abstract param reference:

a = Atom()
assert Atom.coord.x.getParamValue(a) == 0 # ints default to 0
a.coord.x = 3
assert Atom.coord.x.getParamValue(a) == 3
Parameters

param (CompoundParam) – The owner param to get a param value from

classmethod getSubParam(name)

Get the value of a subparam using the string name:

c = Coord()
assert c.getSubParam('x') == 0

Note

Using the string name to access params is generally discouraged, but can be useful for serializing/deserializing param data.

Parameters

name (str) – The name of the subparam to get the value for.

classmethod getSubParams()

Return a dictionary mapping subparam names to their values.

getTaskDir()

Returns the full path of the task directory. This is only available if the task directory exists (after creation of the taskdir or, if no task dir is specified, any time).

getTaskFilename(fname)

Return the appropriate absolute path for an input or output file in the taskdir.

getTypeHint()
get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

guard()

Context manager that saves any Exception raised inside

inherits(self, classname: str) → bool
initAbstract()
initConcrete()

Override to customize initialization of concrete params.

initializeValue()

@overrides: parameters.CompoundParam

input: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
inputChanged
inputReplaced
installEventFilter(self, a0: QObject)
classmethod isAbstract()

Whether the param is an “abstract” param.

isDebugEnabled()
isDefault()

Whether the current value of this instance matches the default value.

isInterruptionRequested()
isRunning()
isSignalConnected(self, signal: QMetaMethod) → bool
isStartable()
isWidgetType(self) → bool
isWindowType(self) → bool
kill()

@overrides: AbstractTask

Kill the subprocess and set the status to FAILED.

killTimer(self, id: int)
makeCmd()
max_progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
max_progressChanged
max_progressReplaced
metaObject(self) → QMetaObject
moveToThread(self, thread: QThread)
name: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
nameChanged
nameReplaced
objectName(self) → str
objectNameChanged

objectNameChanged(self, objectName: str) [signal]

output: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
outputChanged
outputReplaced
classmethod owner()

Get the owner of the param:

# Can be called on an abstract param:
assert Coord.x.owner() == Coord

# ...or on an instance of a CompoundParam
a = Atom()
assert a.coord.owner() == a
classmethod ownerChain()

Returns a list of param owners starting from the toplevel param and ending with self. Examples:

foo.bar.atom.coord.ownerChain() will return [foo, bar, atom, coord] where every item is a concrete param.

Foo.bar.atom.coord.x.ownerChain() will return [Foo, Foo.bar, Foo.atom.coord, Foo.atom.coord.x] where every item is an abstract params.

classmethod paramName()

Get the name of the param:

# Can be called on an abstract param:
print(Coord.x.paramName()) # 'x'

# ...or on an instance of a CompoundParam
a = Atom()
a.coord.paramName() # 'coord'
parent(self) → QObject
postprocessors()
Returns

A list of postprocessors, both decorated methods on the task and external functions that have been added via addPostprocessor()

Return type

list[typing.Callable]

preprocessors()
Returns

A list of preprocessors (both decorated methods on the task and external functions that have been added via addPreprocessor)

printDebug(*args)
printingOutputToTerminal()
Returns

whether the StdOut and StdErr output from this task is being printed to the terminal

Return type

bool

processFuncChain(chain=None, result_callback=None)

Execute each function in the specified chain sequentially in order.

The result_callback is called after each function with the return value of that function. This can be used to respond to the return value (e.g. present information to the user, get user feedback, log the result, etc.)

The return value of the result_callback determines whether processing will proceeed to the next function.

Parameters

  • chain (FuncChainDecorator) – which chain to process

  • result_callback – the callback that will get called with the result of each function in the chain

Returns

a list of the results from the functions

progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progressChanged
progressReplaced
progress_string: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progress_stringChanged
progress_stringReplaced
property(self, name: str) → Any
pyqtConfigure(...)

Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

qprocess

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
receivers(self, signal: PYQT_SIGNAL) → int
removeEventFilter(self, a0: QObject)
replicate()

Create a new task with the same input and settings (but no output)

requestInterruption()

Request the task to stop.

To enable this feature, subclasses should periodically check whether an interruption has been requested and terminate if it has been. If such logic has been included, INTERRUPT_ENABLED should be set to True.

reset(*args, **kwargs)

Resets this compound param to its default value:

class Line(CompoundParam):
    start = Coord(x=1, y=2)
    end = Coord(x=4, y=5)
line = Line()
line.start.x = line.end.x = 10
assert line.start.x == line.end.x == 10
line.reset()
assert line.start.x == 1
assert line.end.x == 4

Any number of abstract params may be passed in to perform a partial reset of only the specified params:

line.start.x = line.end.x = 10
line.reset(Line.start.x)  # resets just start.x
assert line.start.x == 1
assert line.end.x == 10

line.reset(Line.end)      # resets the entire end point
assert line.end.x == 4

line.start.y = line.end.y = 10
line.reset(Line.start.y, Line.end.y)  # resets the y-coord of both
assert line.start.y == 2
assert line.end.y == 5
run()
runCmd(cmd)
runPreprocessing(callback=None, calling_context=None)

Run the preprocessors one-by-one. By default, any failing preprocessor will raise a TaskFailure exception and terminate processing. This behavior may be customized by supplying a callback function which will be called after each preprocessor with the result of that preprocessor.

This method is “final” so that all preprocessing logic will be enclosed in the try/finally block.

Parameters

  • callback – a function that takes result and returns a bool that indicates whether to continue on to the next preprocessor

  • calling_context – specify a value here to indicate the context in which this preprocessing is being called. This value will be stored in an instance variable, self.calling_context, which can be accessed from any preprocessor method on this task. Typically this value will be either self.GUI, self.CMDLINE, or None, but any value may be supplied here and checked for in the preprocessor methods. self.calling_context always reverts back to None at the end of runPreprocessing.

sender(self) → QObject
senderSignalIndex(self) → int
setObjectName(self, name: str)
classmethod setParamValue(obj, value)

Set the value of a param on an object by specifying the instance and the value:

# Setting the param value of a basic param
a = Atom()
Atom.coord.x.setParamValue(a, 5)
assert a.coord.x == 5

# setParamValue can also be used to set the value of CompoundParams
c = Coord()
c.x = 10
atom.coord.setParamValue(a, c)
assert atom.coord.x == 10
Parameters

  • param – The owner param to set a subparam value of.

  • value – The value to set the subparam value to.

setParent(self, a0: QObject)
setPrintingOutputToTerminal(print_to_terminal)

Set this task to print StdOut and StdErr output to terminal, or not. This must be set before starting the task to enable terminal output.

Parameters

print_to_terminal (bool) – whether to send process output to terminal

setProperty(self, name: str, value: Any) → bool
classmethod setReference(param1, param2)

Call this class method from configureParam to indicate that two params should be kept in sync. The initial values will start with the default value of param1. Example:

class Square(CompoundParam):
    width: float = 5
    height: float = 10

    @classmethod
    def configureParam(cls):
        super().configureParam()
        cls.setReference(cls.width, cls.height)

square = Square()
assert square.width == square.height == 5 # Default value of width
                                          # takes priority
square.height = 7
assert square.width == square.height == 7
square.width = 6
assert square.width == square.height == 6
Parameters

  • param1 – The first abstract param to keep synced

  • param2 – The second abstract param. After instantiation, this param will take on the value of param1.

setValue(value=None, **kwargs)

Set the value of this CompoundParam to match value.

Parameters

  • value – The value to set this CompoundParam to. It should be the same type as this CompoundParam.

  • kwargs – For internal use only.

signalsBlocked(self) → bool
skip_eq_check()
specifyTaskDir(taskdir_spec)

Specify the taskdir creation behavior. Use one of the following options:

A directory name (string). This may be a relative or absolute path

None - no taskdir is requested. The task will use the CWD as its taskdir

AUTO_TASKDIR - a new subdirectory will be created in the CWD using the task name as the directory name.

TEMP_TASKDIR - a temporary directory will be created in the schrodinger temp dir. This directory is cleaned up when the task is deleted.

Parameters

taskdir_spec – one of the four options listed above

start(*args, **kwargs)

This is the main method for starting a task. Start will check if a task is not already running, run preprocessing, and then run the task.

Failures in preprocessing will interrupt the task start, and the task will never enter the RUNNING state.

Parameters

skip_preprocessing (bool) – whether to skip preprocessing. This can be useful if preprocessing was already performed prior to calling start.

startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int
staticMetaObject = <PyQt6.QtCore.QMetaObject object>
status: schrodinger.tasks.tasks.Status
statusChanged
statusReplaced
taskDirSetting()

Returns the taskdir spec. See specifyTaskDir() for details.

taskDone
taskFailed
taskStarted
thread(self) → QThread
timerEvent(self, a0: QTimerEvent)
toDict()

Return a dictionary version of this CompoundParam. The returned dictionary is fully nested and contains no CompoundParam instances

a = Atom()
a_dict = a.toDict()
assert a_dict['coord']['x'] == 0
assert a_dict['coord'] == {'x':0, 'y':0}
toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Returns a JSON representation of this value object.

Warning

This should never be called directly.

tr(sourceText: str, disambiguation: typing.Optional[str] = None, n: int = - 1) → str
valueChanged
wait(timeout=None)

Block until the task is finished executing or timeout seconds have passed.

Warning

This should not be called directly from GUI code - see PANEL-18317. It is safe to call inside a subprocess or job. Run git grep "task.wait(" to see safe examples annotated with “# OK”.

Parameters

timeout (NoneType or int) – Amount of time in seconds to wait before timing out. If None or a negative number, this method will wait until the task is finished.

class schrodinger.tasks.tasks.ComboBlockingFunctionTask(*args, _param_type=<object object>, **kwargs)

Bases: schrodinger.tasks.tasks.AbstractComboTask

This is mostly for testing purposes.

runCmd(cmd)
AUTO_TASKDIR = 1
CMDLINE = 1
DEFAULT_TASKDIR_SETTING = None
DONE = 3
DataClass

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
ENTRYPOINT = 'combotask_entry_point.py'
FAILED = 2
GUI = 2
INTERRUPT_ENABLED = False
RUNNING = 1
TEMP_TASKDIR = 2
WAITING = 0
__init__(*args, **kwargs)
addFuncToGroup(func, group=None, order=None)

Adds a function to the specified chain. Typically used for adding functions that are not methods of this object.

The function may optionally be decorated with a FuncGroupMarker. If so, the default group and order will be determined by the decorator. Any group or order explicitly passed in to addFuncToGroup will take precedence over the decorator settings.

Parameters

  • func – the function to add

  • group (FuncGroupMarker or None) – the group marker. If the function is decorated with a FuncGoupMarker, that group marker will be the default.

  • order (float or None) – the sorting order. If the function is decorated with a FuncGoupMarker, the order specified in the decorator will be the default.

addLicenseReservation(license, num_tokens=1)

Add a license reservation for this job. This information is used by job control to ensure the job is only started once the required licenses become available.

In a preprocessor, (i.e. before launching the backend), a reservation should be added for each license that will be checked out directly by that backend. Example:

class GlideTask(ComboJobTask):

    @preprocessor
    def _reserveGlideLicense(self):
        # Reserve a Glide license.
        self.addLicenseReservation(license.GLIDE_MAIN)

    def mainFunction(self):
        # Check out the Glide license
        lic = license.License(license.GLIDE_MAIN)

        # ... Do computations requiring Glide ...

        lic.checkin()

Licenses that will be checked out by subjobs of this job do not need reservations added here; subjobs are responsible for their own license reservations.

Parameters

  • license (module-constant from schrodinger.utils.license (e.g. license.AUTODESIGNER)) – a license that will be used by the backend

  • num_tokens (int) – number of tokens for this license reservations

addPostprocessor(func, order=0)

Adds a postproceessor function to this task instance. If the function has been decorated with @postprocessor, the order specified by the decorator will be used.

Parameters

  • func (typing.Callable) – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

addPreprocessor(func, order=None)

Adds a preproceessor function to this task instance. If the function has been decorated with @preprocessor, the order specified by the decorator will be used as the default.

Parameters

  • func – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

classmethod addSubParam(name, param, update_owner=True)
backendMain()
blockSignals(self, b: bool) → bool
block_signal_propagation()
calling_context: schrodinger.tasks.tasks.CallingContext
calling_contextChanged
calling_contextReplaced
childEvent(self, a0: QChildEvent)
children(self) → List[QObject]
classmethod configureParam()

Override this class method to set up the abstract param class (e.g. setParamReference on child params.)

connectNotify(self, signal: QMetaMethod)
customEvent(self, a0: QEvent)
classmethod defaultValue()

Returns the default value for this abstract param:

default_atom = Atom.defaultValue()
assert Atom.coord.x == 0
deleteLater(self)
destroyed

destroyed(self, object: typing.Optional[QObject] = None) [signal]

disconnect(a0: QMetaObject.Connection) → bool
disconnect(self) → None
disconnectNotify(self, signal: QMetaMethod)
dumpObjectInfo(self)
dumpObjectTree(self)
dynamicPropertyNames(self) → List[QByteArray]
event(self, a0: QEvent) → bool
eventFilter(self, a0: QObject, a1: QEvent) → bool
failure_info: schrodinger.tasks.tasks.FailureInfo

Dataclass for task failure information.

Printing an instance of this class will provide the minimum necessary human-readable representation of a recorded failure.

failure_infoChanged
failure_infoReplaced
findChild(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChild(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChildren(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonFilename(filename)
classmethod fromJsonImplementation(json_dict)

Sets the value of this compound param value object from a JSON dict.

Warning

This should never be called directly.

getAbstractParam()

Return the corresponding abstract param for this instance.

getAddedFuncs(group=None)
getDebugString()
getFuncGroup(group=None)

Retrieve the functions belonging to the specified group.

Parameters

group (FuncGroupMarker) – the group marker

Returns

the functions in the specified group, in order

Return type

list

classmethod getJsonBlacklist()

Override to customize what params are serialized.

Implementations should return a list of abstract params that should be omitted from serialization.

..NOTE

Returned abstract params must be direct child params of cls, e.g. cls.name, not cls.coord.x.

classmethod getParamSignal(obj, signal_type='Changed')
classmethod getParamValue(obj)

Enables access to a param value on a compound param via an abstract param reference:

a = Atom()
assert Atom.coord.x.getParamValue(a) == 0 # ints default to 0
a.coord.x = 3
assert Atom.coord.x.getParamValue(a) == 3
Parameters

param (CompoundParam) – The owner param to get a param value from

classmethod getSubParam(name)

Get the value of a subparam using the string name:

c = Coord()
assert c.getSubParam('x') == 0

Note

Using the string name to access params is generally discouraged, but can be useful for serializing/deserializing param data.

Parameters

name (str) – The name of the subparam to get the value for.

classmethod getSubParams()

Return a dictionary mapping subparam names to their values.

getTaskDir()

Returns the full path of the task directory. This is only available if the task directory exists (after creation of the taskdir or, if no task dir is specified, any time).

getTaskFilename(fname)

Return the appropriate absolute path for an input or output file in the taskdir.

getTypeHint()
get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

guard()

Context manager that saves any Exception raised inside

inherits(self, classname: str) → bool
initAbstract()
initConcrete()

Override to customize initialization of concrete params.

initializeValue()

@overrides: parameters.CompoundParam

input: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
inputChanged
inputReplaced
installEventFilter(self, a0: QObject)
classmethod isAbstract()

Whether the param is an “abstract” param.

isBackendMode()
isDebugEnabled()
isDefault()

Whether the current value of this instance matches the default value.

isInterruptionRequested()
isRunning()
isSignalConnected(self, signal: QMetaMethod) → bool
isStartable()
isWidgetType(self) → bool
isWindowType(self) → bool
property json_filename
property json_out_filename
kill()

Implementations are responsible for immediately stopping the task. No threads or processes should be running after this method is complete.

This method should be called sparingly since in many contexts the task will be forced to terminate without a chance to clean up or free resources.

killTimer(self, id: int)
mainFunction()
makeCmd()

@overrides: AbstractCmdTask

max_progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
max_progressChanged
max_progressReplaced
metaObject(self) → QMetaObject
moveToThread(self, thread: QThread)
name: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
nameChanged
nameReplaced
objectName(self) → str
objectNameChanged

objectNameChanged(self, objectName: str) [signal]

output: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
outputChanged
outputReplaced
classmethod owner()

Get the owner of the param:

# Can be called on an abstract param:
assert Coord.x.owner() == Coord

# ...or on an instance of a CompoundParam
a = Atom()
assert a.coord.owner() == a
classmethod ownerChain()

Returns a list of param owners starting from the toplevel param and ending with self. Examples:

foo.bar.atom.coord.ownerChain() will return [foo, bar, atom, coord] where every item is a concrete param.

Foo.bar.atom.coord.x.ownerChain() will return [Foo, Foo.bar, Foo.atom.coord, Foo.atom.coord.x] where every item is an abstract params.

classmethod paramName()

Get the name of the param:

# Can be called on an abstract param:
print(Coord.x.paramName()) # 'x'

# ...or on an instance of a CompoundParam
a = Atom()
a.coord.paramName() # 'coord'
parent(self) → QObject
postprocessors()
Returns

A list of postprocessors, both decorated methods on the task and external functions that have been added via addPostprocessor()

Return type

list[typing.Callable]

preprocessors()
Returns

A list of preprocessors (both decorated methods on the task and external functions that have been added via addPreprocessor)

printDebug(*args)
processFuncChain(chain=None, result_callback=None)

Execute each function in the specified chain sequentially in order.

The result_callback is called after each function with the return value of that function. This can be used to respond to the return value (e.g. present information to the user, get user feedback, log the result, etc.)

The return value of the result_callback determines whether processing will proceeed to the next function.

Parameters

  • chain (FuncChainDecorator) – which chain to process

  • result_callback – the callback that will get called with the result of each function in the chain

Returns

a list of the results from the functions

progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progressChanged
progressReplaced
progress_string: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progress_stringChanged
progress_stringReplaced
property(self, name: str) → Any
pyqtConfigure(...)

Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

receivers(self, signal: PYQT_SIGNAL) → int
removeEventFilter(self, a0: QObject)
replicate()

Create a new task with the same input and settings (but no output)

requestInterruption()

Request the task to stop.

To enable this feature, subclasses should periodically check whether an interruption has been requested and terminate if it has been. If such logic has been included, INTERRUPT_ENABLED should be set to True.

reset(*args, **kwargs)

Resets this compound param to its default value:

class Line(CompoundParam):
    start = Coord(x=1, y=2)
    end = Coord(x=4, y=5)
line = Line()
line.start.x = line.end.x = 10
assert line.start.x == line.end.x == 10
line.reset()
assert line.start.x == 1
assert line.end.x == 4

Any number of abstract params may be passed in to perform a partial reset of only the specified params:

line.start.x = line.end.x = 10
line.reset(Line.start.x)  # resets just start.x
assert line.start.x == 1
assert line.end.x == 10

line.reset(Line.end)      # resets the entire end point
assert line.end.x == 4

line.start.y = line.end.y = 10
line.reset(Line.start.y, Line.end.y)  # resets the y-coord of both
assert line.start.y == 2
assert line.end.y == 5
run()
runBackend()
runInProcess()
runPreprocessing(callback=None, calling_context=None)

Run the preprocessors one-by-one. By default, any failing preprocessor will raise a TaskFailure exception and terminate processing. This behavior may be customized by supplying a callback function which will be called after each preprocessor with the result of that preprocessor.

This method is “final” so that all preprocessing logic will be enclosed in the try/finally block.

Parameters

  • callback – a function that takes result and returns a bool that indicates whether to continue on to the next preprocessor

  • calling_context – specify a value here to indicate the context in which this preprocessing is being called. This value will be stored in an instance variable, self.calling_context, which can be accessed from any preprocessor method on this task. Typically this value will be either self.GUI, self.CMDLINE, or None, but any value may be supplied here and checked for in the preprocessor methods. self.calling_context always reverts back to None at the end of runPreprocessing.

sender(self) → QObject
senderSignalIndex(self) → int
setObjectName(self, name: str)
classmethod setParamValue(obj, value)

Set the value of a param on an object by specifying the instance and the value:

# Setting the param value of a basic param
a = Atom()
Atom.coord.x.setParamValue(a, 5)
assert a.coord.x == 5

# setParamValue can also be used to set the value of CompoundParams
c = Coord()
c.x = 10
atom.coord.setParamValue(a, c)
assert atom.coord.x == 10
Parameters

  • param – The owner param to set a subparam value of.

  • value – The value to set the subparam value to.

setParent(self, a0: QObject)
setProperty(self, name: str, value: Any) → bool
classmethod setReference(param1, param2)

Call this class method from configureParam to indicate that two params should be kept in sync. The initial values will start with the default value of param1. Example:

class Square(CompoundParam):
    width: float = 5
    height: float = 10

    @classmethod
    def configureParam(cls):
        super().configureParam()
        cls.setReference(cls.width, cls.height)

square = Square()
assert square.width == square.height == 5 # Default value of width
                                          # takes priority
square.height = 7
assert square.width == square.height == 7
square.width = 6
assert square.width == square.height == 6
Parameters

  • param1 – The first abstract param to keep synced

  • param2 – The second abstract param. After instantiation, this param will take on the value of param1.

setValue(value=None, **kwargs)

Set the value of this CompoundParam to match value.

Parameters

  • value – The value to set this CompoundParam to. It should be the same type as this CompoundParam.

  • kwargs – For internal use only.

signalsBlocked(self) → bool
skip_eq_check()
specifyTaskDir(taskdir_spec)

Specify the taskdir creation behavior. Use one of the following options:

A directory name (string). This may be a relative or absolute path

None - no taskdir is requested. The task will use the CWD as its taskdir

AUTO_TASKDIR - a new subdirectory will be created in the CWD using the task name as the directory name.

TEMP_TASKDIR - a temporary directory will be created in the schrodinger temp dir. This directory is cleaned up when the task is deleted.

Parameters

taskdir_spec – one of the four options listed above

start(*args, **kwargs)

@overrides: AbstractTask

startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int
staticMetaObject = <PyQt6.QtCore.QMetaObject object>
status: schrodinger.tasks.tasks.Status
statusChanged
statusReplaced
taskDirSetting()

Returns the taskdir spec. See specifyTaskDir() for details.

taskDone
taskFailed
taskStarted
thread(self) → QThread
timerEvent(self, a0: QTimerEvent)
toDict()

Return a dictionary version of this CompoundParam. The returned dictionary is fully nested and contains no CompoundParam instances

a = Atom()
a_dict = a.toDict()
assert a_dict['coord']['x'] == 0
assert a_dict['coord'] == {'x':0, 'y':0}
toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Returns a JSON representation of this value object.

Warning

This should never be called directly.

tr(sourceText: str, disambiguation: typing.Optional[str] = None, n: int = - 1) → str
valueChanged
wait(timeout=None)

Block until the task is finished executing or timeout seconds have passed.

Warning

This should not be called directly from GUI code - see PANEL-18317. It is safe to call inside a subprocess or job. Run git grep "task.wait(" to see safe examples annotated with “# OK”.

Parameters

timeout (NoneType or int) – Amount of time in seconds to wait before timing out. If None or a negative number, this method will wait until the task is finished.

class schrodinger.tasks.tasks.ComboSubprocessTask(*args, _param_type=<object object>, **kwargs)

Bases: schrodinger.tasks.tasks.SubprocessMixin, schrodinger.tasks.tasks.AbstractComboTask

A task that runs a function in a subprocess. To use, implement mainFunction.

runBackend()
getTaskDir()

Returns the full path of the task directory. This is only available if the task directory exists (after creation of the taskdir or, if no task dir is specified, any time).

AUTO_TASKDIR = 1
CMDLINE = 1
DEFAULT_TASKDIR_SETTING = None
DONE = 3
DataClass

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
ENTRYPOINT = 'combotask_entry_point.py'
FAILED = 2
GUI = 2
INTERRUPT_ENABLED = False
RUNNING = 1
TEMP_TASKDIR = 2
WAITING = 0
__init__(*args, **kwargs)
addFuncToGroup(func, group=None, order=None)

Adds a function to the specified chain. Typically used for adding functions that are not methods of this object.

The function may optionally be decorated with a FuncGroupMarker. If so, the default group and order will be determined by the decorator. Any group or order explicitly passed in to addFuncToGroup will take precedence over the decorator settings.

Parameters

  • func – the function to add

  • group (FuncGroupMarker or None) – the group marker. If the function is decorated with a FuncGoupMarker, that group marker will be the default.

  • order (float or None) – the sorting order. If the function is decorated with a FuncGoupMarker, the order specified in the decorator will be the default.

addLicenseReservation(license, num_tokens=1)

Add a license reservation for this job. This information is used by job control to ensure the job is only started once the required licenses become available.

In a preprocessor, (i.e. before launching the backend), a reservation should be added for each license that will be checked out directly by that backend. Example:

class GlideTask(ComboJobTask):

    @preprocessor
    def _reserveGlideLicense(self):
        # Reserve a Glide license.
        self.addLicenseReservation(license.GLIDE_MAIN)

    def mainFunction(self):
        # Check out the Glide license
        lic = license.License(license.GLIDE_MAIN)

        # ... Do computations requiring Glide ...

        lic.checkin()

Licenses that will be checked out by subjobs of this job do not need reservations added here; subjobs are responsible for their own license reservations.

Parameters

  • license (module-constant from schrodinger.utils.license (e.g. license.AUTODESIGNER)) – a license that will be used by the backend

  • num_tokens (int) – number of tokens for this license reservations

addPostprocessor(func, order=0)

Adds a postproceessor function to this task instance. If the function has been decorated with @postprocessor, the order specified by the decorator will be used.

Parameters

  • func (typing.Callable) – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

addPreprocessor(func, order=None)

Adds a preproceessor function to this task instance. If the function has been decorated with @preprocessor, the order specified by the decorator will be used as the default.

Parameters

  • func – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

classmethod addSubParam(name, param, update_owner=True)
backendMain()
blockSignals(self, b: bool) → bool
block_signal_propagation()
calling_context: schrodinger.tasks.tasks.CallingContext
calling_contextChanged
calling_contextReplaced
childEvent(self, a0: QChildEvent)
children(self) → List[QObject]
cmd

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
classmethod configureParam()

Override this class method to set up the abstract param class (e.g. setParamReference on child params.)

connectNotify(self, signal: QMetaMethod)
customEvent(self, a0: QEvent)
classmethod defaultValue()

Returns the default value for this abstract param:

default_atom = Atom.defaultValue()
assert Atom.coord.x == 0
deleteLater(self)
destroyed

destroyed(self, object: typing.Optional[QObject] = None) [signal]

disconnect(a0: QMetaObject.Connection) → bool
disconnect(self) → None
disconnectNotify(self, signal: QMetaMethod)
dumpObjectInfo(self)
dumpObjectTree(self)
dynamicPropertyNames(self) → List[QByteArray]
event(self, a0: QEvent) → bool
eventFilter(self, a0: QObject, a1: QEvent) → bool
exit_code

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
failure_info: schrodinger.tasks.tasks.FailureInfo

Dataclass for task failure information.

Printing an instance of this class will provide the minimum necessary human-readable representation of a recorded failure.

failure_infoChanged
failure_infoReplaced
findChild(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChild(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChildren(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonFilename(filename)
classmethod fromJsonImplementation(json_dict)

Sets the value of this compound param value object from a JSON dict.

Warning

This should never be called directly.

getAbstractParam()

Return the corresponding abstract param for this instance.

getAddedFuncs(group=None)
getDebugString()
getFuncGroup(group=None)

Retrieve the functions belonging to the specified group.

Parameters

group (FuncGroupMarker) – the group marker

Returns

the functions in the specified group, in order

Return type

list

classmethod getJsonBlacklist()

Override to customize what params are serialized.

Implementations should return a list of abstract params that should be omitted from serialization.

..NOTE

Returned abstract params must be direct child params of cls, e.g. cls.name, not cls.coord.x.

getLogAsString() → str
getLogFilename()
classmethod getParamSignal(obj, signal_type='Changed')
classmethod getParamValue(obj)

Enables access to a param value on a compound param via an abstract param reference:

a = Atom()
assert Atom.coord.x.getParamValue(a) == 0 # ints default to 0
a.coord.x = 3
assert Atom.coord.x.getParamValue(a) == 3
Parameters

param (CompoundParam) – The owner param to get a param value from

classmethod getSubParam(name)

Get the value of a subparam using the string name:

c = Coord()
assert c.getSubParam('x') == 0

Note

Using the string name to access params is generally discouraged, but can be useful for serializing/deserializing param data.

Parameters

name (str) – The name of the subparam to get the value for.

classmethod getSubParams()

Return a dictionary mapping subparam names to their values.

getTaskFilename(fname)

Return the appropriate absolute path for an input or output file in the taskdir.

getTypeHint()
get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

guard()

Context manager that saves any Exception raised inside

inherits(self, classname: str) → bool
initAbstract()
initConcrete()

Override to customize initialization of concrete params.

initializeValue()

@overrides: parameters.CompoundParam

input: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
inputChanged
inputReplaced
installEventFilter(self, a0: QObject)
classmethod isAbstract()

Whether the param is an “abstract” param.

isBackendMode()
isDebugEnabled()
isDefault()

Whether the current value of this instance matches the default value.

isInterruptionRequested()
isRunning()
isSignalConnected(self, signal: QMetaMethod) → bool
isStartable()
isWidgetType(self) → bool
isWindowType(self) → bool
property json_filename
property json_out_filename
kill()

@overrides: AbstractTask

Kill the subprocess and set the status to FAILED.

killTimer(self, id: int)
mainFunction()
makeCmd()

@overrides: AbstractCmdTask

max_progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
max_progressChanged
max_progressReplaced
metaObject(self) → QMetaObject
moveToThread(self, thread: QThread)
name: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
nameChanged
nameReplaced
objectName(self) → str
objectNameChanged

objectNameChanged(self, objectName: str) [signal]

output: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
outputChanged
outputReplaced
classmethod owner()

Get the owner of the param:

# Can be called on an abstract param:
assert Coord.x.owner() == Coord

# ...or on an instance of a CompoundParam
a = Atom()
assert a.coord.owner() == a
classmethod ownerChain()

Returns a list of param owners starting from the toplevel param and ending with self. Examples:

foo.bar.atom.coord.ownerChain() will return [foo, bar, atom, coord] where every item is a concrete param.

Foo.bar.atom.coord.x.ownerChain() will return [Foo, Foo.bar, Foo.atom.coord, Foo.atom.coord.x] where every item is an abstract params.

classmethod paramName()

Get the name of the param:

# Can be called on an abstract param:
print(Coord.x.paramName()) # 'x'

# ...or on an instance of a CompoundParam
a = Atom()
a.coord.paramName() # 'coord'
parent(self) → QObject
postprocessors()
Returns

A list of postprocessors, both decorated methods on the task and external functions that have been added via addPostprocessor()

Return type

list[typing.Callable]

preprocessors()
Returns

A list of preprocessors (both decorated methods on the task and external functions that have been added via addPreprocessor)

printDebug(*args)
printingOutputToTerminal()
Returns

whether the StdOut and StdErr output from this task is being printed to the terminal

Return type

bool

processFuncChain(chain=None, result_callback=None)

Execute each function in the specified chain sequentially in order.

The result_callback is called after each function with the return value of that function. This can be used to respond to the return value (e.g. present information to the user, get user feedback, log the result, etc.)

The return value of the result_callback determines whether processing will proceeed to the next function.

Parameters

  • chain (FuncChainDecorator) – which chain to process

  • result_callback – the callback that will get called with the result of each function in the chain

Returns

a list of the results from the functions

progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progressChanged
progressReplaced
progress_string: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progress_stringChanged
progress_stringReplaced
property(self, name: str) → Any
pyqtConfigure(...)

Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

qprocess

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
receivers(self, signal: PYQT_SIGNAL) → int
removeEventFilter(self, a0: QObject)
replicate()

Create a new task with the same input and settings (but no output)

requestInterruption()

Request the task to stop.

To enable this feature, subclasses should periodically check whether an interruption has been requested and terminate if it has been. If such logic has been included, INTERRUPT_ENABLED should be set to True.

reset(*args, **kwargs)

Resets this compound param to its default value:

class Line(CompoundParam):
    start = Coord(x=1, y=2)
    end = Coord(x=4, y=5)
line = Line()
line.start.x = line.end.x = 10
assert line.start.x == line.end.x == 10
line.reset()
assert line.start.x == 1
assert line.end.x == 4

Any number of abstract params may be passed in to perform a partial reset of only the specified params:

line.start.x = line.end.x = 10
line.reset(Line.start.x)  # resets just start.x
assert line.start.x == 1
assert line.end.x == 10

line.reset(Line.end)      # resets the entire end point
assert line.end.x == 4

line.start.y = line.end.y = 10
line.reset(Line.start.y, Line.end.y)  # resets the y-coord of both
assert line.start.y == 2
assert line.end.y == 5
run()
runCmd(cmd)
runInProcess()
runPreprocessing(callback=None, calling_context=None)

Run the preprocessors one-by-one. By default, any failing preprocessor will raise a TaskFailure exception and terminate processing. This behavior may be customized by supplying a callback function which will be called after each preprocessor with the result of that preprocessor.

This method is “final” so that all preprocessing logic will be enclosed in the try/finally block.

Parameters

  • callback – a function that takes result and returns a bool that indicates whether to continue on to the next preprocessor

  • calling_context – specify a value here to indicate the context in which this preprocessing is being called. This value will be stored in an instance variable, self.calling_context, which can be accessed from any preprocessor method on this task. Typically this value will be either self.GUI, self.CMDLINE, or None, but any value may be supplied here and checked for in the preprocessor methods. self.calling_context always reverts back to None at the end of runPreprocessing.

sender(self) → QObject
senderSignalIndex(self) → int
setObjectName(self, name: str)
classmethod setParamValue(obj, value)

Set the value of a param on an object by specifying the instance and the value:

# Setting the param value of a basic param
a = Atom()
Atom.coord.x.setParamValue(a, 5)
assert a.coord.x == 5

# setParamValue can also be used to set the value of CompoundParams
c = Coord()
c.x = 10
atom.coord.setParamValue(a, c)
assert atom.coord.x == 10
Parameters

  • param – The owner param to set a subparam value of.

  • value – The value to set the subparam value to.

setParent(self, a0: QObject)
setPrintingOutputToTerminal(print_to_terminal)

Set this task to print StdOut and StdErr output to terminal, or not. This must be set before starting the task to enable terminal output.

Parameters

print_to_terminal (bool) – whether to send process output to terminal

setProperty(self, name: str, value: Any) → bool
classmethod setReference(param1, param2)

Call this class method from configureParam to indicate that two params should be kept in sync. The initial values will start with the default value of param1. Example:

class Square(CompoundParam):
    width: float = 5
    height: float = 10

    @classmethod
    def configureParam(cls):
        super().configureParam()
        cls.setReference(cls.width, cls.height)

square = Square()
assert square.width == square.height == 5 # Default value of width
                                          # takes priority
square.height = 7
assert square.width == square.height == 7
square.width = 6
assert square.width == square.height == 6
Parameters

  • param1 – The first abstract param to keep synced

  • param2 – The second abstract param. After instantiation, this param will take on the value of param1.

setValue(value=None, **kwargs)

Set the value of this CompoundParam to match value.

Parameters

  • value – The value to set this CompoundParam to. It should be the same type as this CompoundParam.

  • kwargs – For internal use only.

signalsBlocked(self) → bool
skip_eq_check()
specifyTaskDir(taskdir_spec)

Specify the taskdir creation behavior. Use one of the following options:

A directory name (string). This may be a relative or absolute path

None - no taskdir is requested. The task will use the CWD as its taskdir

AUTO_TASKDIR - a new subdirectory will be created in the CWD using the task name as the directory name.

TEMP_TASKDIR - a temporary directory will be created in the schrodinger temp dir. This directory is cleaned up when the task is deleted.

Parameters

taskdir_spec – one of the four options listed above

start(*args, **kwargs)

@overrides: AbstractTask

startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int
staticMetaObject = <PyQt6.QtCore.QMetaObject object>
status: schrodinger.tasks.tasks.Status
statusChanged
statusReplaced
taskDirSetting()

Returns the taskdir spec. See specifyTaskDir() for details.

taskDone
taskFailed
taskStarted
thread(self) → QThread
timerEvent(self, a0: QTimerEvent)
toDict()

Return a dictionary version of this CompoundParam. The returned dictionary is fully nested and contains no CompoundParam instances

a = Atom()
a_dict = a.toDict()
assert a_dict['coord']['x'] == 0
assert a_dict['coord'] == {'x':0, 'y':0}
toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Returns a JSON representation of this value object.

Warning

This should never be called directly.

tr(sourceText: str, disambiguation: typing.Optional[str] = None, n: int = - 1) → str
valueChanged
wait(timeout=None)

Block until the task is finished executing or timeout seconds have passed.

Warning

This should not be called directly from GUI code - see PANEL-18317. It is safe to call inside a subprocess or job. Run git grep "task.wait(" to see safe examples annotated with “# OK”.

Parameters

timeout (NoneType or int) – Amount of time in seconds to wait before timing out. If None or a negative number, this method will wait until the task is finished.

class schrodinger.tasks.tasks.SignalTask(*args, _param_type=<object object>, **kwargs)

Bases: schrodinger.tasks.tasks.AbstractTask

A task that relies on signals to proceed. Runs asynchronously via the event loop without requiring a worker thread. To use, implement setUpMain to connect any per-run signals and slots. Any slots should be decorated with SignalTask.guard_method so that exceptions in slots get converted into task failures. To end the task, emit self.mainDone to indicate the task has successfully completed. To fail, raise a TaskFailure or other exception.

AUTO_TASKDIR = 1
CMDLINE = 1
DEFAULT_TASKDIR_SETTING = None
DONE = 3
DataClass

This class can be used to declare a public attribute on a CompoundParam. Declared public attributes can be used without error.

Example usage:

class Coord(CompoundParam):
    x: int
    y: int
    note = NonParamAttribute()

coord = Coord()
coord.note = "hello" # No error
FAILED = 2
GUI = 2
INTERRUPT_ENABLED = False
RUNNING = 1
TEMP_TASKDIR = 2
WAITING = 0
addFuncToGroup(func, group=None, order=None)

Adds a function to the specified chain. Typically used for adding functions that are not methods of this object.

The function may optionally be decorated with a FuncGroupMarker. If so, the default group and order will be determined by the decorator. Any group or order explicitly passed in to addFuncToGroup will take precedence over the decorator settings.

Parameters

  • func – the function to add

  • group (FuncGroupMarker or None) – the group marker. If the function is decorated with a FuncGoupMarker, that group marker will be the default.

  • order (float or None) – the sorting order. If the function is decorated with a FuncGoupMarker, the order specified in the decorator will be the default.

addLicenseReservation(license, num_tokens=1)

Add a license reservation for this job. This information is used by job control to ensure the job is only started once the required licenses become available.

In a preprocessor, (i.e. before launching the backend), a reservation should be added for each license that will be checked out directly by that backend. Example:

class GlideTask(ComboJobTask):

    @preprocessor
    def _reserveGlideLicense(self):
        # Reserve a Glide license.
        self.addLicenseReservation(license.GLIDE_MAIN)

    def mainFunction(self):
        # Check out the Glide license
        lic = license.License(license.GLIDE_MAIN)

        # ... Do computations requiring Glide ...

        lic.checkin()

Licenses that will be checked out by subjobs of this job do not need reservations added here; subjobs are responsible for their own license reservations.

Parameters

  • license (module-constant from schrodinger.utils.license (e.g. license.AUTODESIGNER)) – a license that will be used by the backend

  • num_tokens (int) – number of tokens for this license reservations

addPostprocessor(func, order=0)

Adds a postproceessor function to this task instance. If the function has been decorated with @postprocessor, the order specified by the decorator will be used.

Parameters

  • func (typing.Callable) – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

addPreprocessor(func, order=None)

Adds a preproceessor function to this task instance. If the function has been decorated with @preprocessor, the order specified by the decorator will be used as the default.

Parameters

  • func – the function to add

  • order (float) – the sorting order for the function relative to all other preprocessors. Takes precedence over order specified by the preprocessor decorator.

classmethod addSubParam(name, param, update_owner=True)
blockSignals(self, b: bool) → bool
block_signal_propagation()
calling_context: schrodinger.tasks.tasks.CallingContext
calling_contextChanged
calling_contextReplaced
childEvent(self, a0: QChildEvent)
children(self) → List[QObject]
classmethod configureParam()

Override this class method to set up the abstract param class (e.g. setParamReference on child params.)

connectNotify(self, signal: QMetaMethod)
customEvent(self, a0: QEvent)
classmethod defaultValue()

Returns the default value for this abstract param:

default_atom = Atom.defaultValue()
assert Atom.coord.x == 0
deleteLater(self)
destroyed

destroyed(self, object: typing.Optional[QObject] = None) [signal]

disconnect(a0: QMetaObject.Connection) → bool
disconnect(self) → None
disconnectNotify(self, signal: QMetaMethod)
dumpObjectInfo(self)
dumpObjectTree(self)
dynamicPropertyNames(self) → List[QByteArray]
event(self, a0: QEvent) → bool
eventFilter(self, a0: QObject, a1: QEvent) → bool
failure_info: schrodinger.tasks.tasks.FailureInfo

Dataclass for task failure information.

Printing an instance of this class will provide the minimum necessary human-readable representation of a recorded failure.

failure_infoChanged
failure_infoReplaced
findChild(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChild(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → QObject
findChildren(self, type: type, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, name: str = '', options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, type: type, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
findChildren(self, types: Tuple, re: QRegularExpression, options: Qt.FindChildOption = Qt.FindChildrenRecursively) → List[QObject]
classmethod fromJson(json_obj)

A factory method which constructs a new object from a given dict loaded from a json string or file.

Parameters

json_obj (dict) – A json-loaded dictionary to create an object from.

Returns

An instance of this class.

Return type

cls

classmethod fromJsonFilename(filename)
classmethod fromJsonImplementation(json_dict)

Sets the value of this compound param value object from a JSON dict.

Warning

This should never be called directly.

getAbstractParam()

Return the corresponding abstract param for this instance.

getAddedFuncs(group=None)
getDebugString()
getFuncGroup(group=None)

Retrieve the functions belonging to the specified group.

Parameters

group (FuncGroupMarker) – the group marker

Returns

the functions in the specified group, in order

Return type

list

classmethod getJsonBlacklist()

Override to customize what params are serialized.

Implementations should return a list of abstract params that should be omitted from serialization.

..NOTE

Returned abstract params must be direct child params of cls, e.g. cls.name, not cls.coord.x.

classmethod getParamSignal(obj, signal_type='Changed')
classmethod getParamValue(obj)

Enables access to a param value on a compound param via an abstract param reference:

a = Atom()
assert Atom.coord.x.getParamValue(a) == 0 # ints default to 0
a.coord.x = 3
assert Atom.coord.x.getParamValue(a) == 3
Parameters

param (CompoundParam) – The owner param to get a param value from

classmethod getSubParam(name)

Get the value of a subparam using the string name:

c = Coord()
assert c.getSubParam('x') == 0

Note

Using the string name to access params is generally discouraged, but can be useful for serializing/deserializing param data.

Parameters

name (str) – The name of the subparam to get the value for.

classmethod getSubParams()

Return a dictionary mapping subparam names to their values.

getTaskDir()

Returns the full path of the task directory. This is only available if the task directory exists (after creation of the taskdir or, if no task dir is specified, any time).

getTaskFilename(fname)

Return the appropriate absolute path for an input or output file in the taskdir.

getTypeHint()
get_version()

Method to get the version of a particular object. Defaults to the current version of mmshare. This class can be overridden for custom versioning behavior.

guard()

Context manager that saves any Exception raised inside

inherits(self, classname: str) → bool
initAbstract()
initConcrete()

Override to customize initialization of concrete params.

initializeValue()

@overrides: parameters.CompoundParam

input: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
inputChanged
inputReplaced
installEventFilter(self, a0: QObject)
classmethod isAbstract()

Whether the param is an “abstract” param.

isDebugEnabled()
isDefault()

Whether the current value of this instance matches the default value.

isInterruptionRequested()
isRunning()
isSignalConnected(self, signal: QMetaMethod) → bool
isStartable()
isWidgetType(self) → bool
isWindowType(self) → bool
kill()

Implementations are responsible for immediately stopping the task. No threads or processes should be running after this method is complete.

This method should be called sparingly since in many contexts the task will be forced to terminate without a chance to clean up or free resources.

killTimer(self, id: int)
mainDone
max_progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
max_progressChanged
max_progressReplaced
metaObject(self) → QMetaObject
moveToThread(self, thread: QThread)
name: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
nameChanged
nameReplaced
objectName(self) → str
objectNameChanged

objectNameChanged(self, objectName: str) [signal]

output: schrodinger.models.parameters.CompoundParam

All CompoundParam instances are automatically serializable if their subparams are serializable. To serialize and deserialize, use the schrodinger json module:

from schrodinger.models import json
class Coord(parameters.CompoundParam):
    x: int
    y: int

c1 = Coord(x=1, y=2)
c1_string = json.dumps(c1)
c2 = json.loads(c1_string, DataClass=Coord)
assert c1 == c2
outputChanged
outputReplaced
classmethod owner()

Get the owner of the param:

# Can be called on an abstract param:
assert Coord.x.owner() == Coord

# ...or on an instance of a CompoundParam
a = Atom()
assert a.coord.owner() == a
classmethod ownerChain()

Returns a list of param owners starting from the toplevel param and ending with self. Examples:

foo.bar.atom.coord.ownerChain() will return [foo, bar, atom, coord] where every item is a concrete param.

Foo.bar.atom.coord.x.ownerChain() will return [Foo, Foo.bar, Foo.atom.coord, Foo.atom.coord.x] where every item is an abstract params.

classmethod paramName()

Get the name of the param:

# Can be called on an abstract param:
print(Coord.x.paramName()) # 'x'

# ...or on an instance of a CompoundParam
a = Atom()
a.coord.paramName() # 'coord'
parent(self) → QObject
postprocessors()
Returns

A list of postprocessors, both decorated methods on the task and external functions that have been added via addPostprocessor()

Return type

list[typing.Callable]

preprocessors()
Returns

A list of preprocessors (both decorated methods on the task and external functions that have been added via addPreprocessor)

printDebug(*args)
processFuncChain(chain=None, result_callback=None)

Execute each function in the specified chain sequentially in order.

The result_callback is called after each function with the return value of that function. This can be used to respond to the return value (e.g. present information to the user, get user feedback, log the result, etc.)

The return value of the result_callback determines whether processing will proceeed to the next function.

Parameters

  • chain (FuncChainDecorator) – which chain to process

  • result_callback – the callback that will get called with the result of each function in the chain

Returns

a list of the results from the functions

progress: int

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progressChanged
progressReplaced
progress_string: str

Base class for all Param classes. A Param is a descriptor for storing data, which means that a single Param instance will manage the data values for multiple instances of the class that owns it. Example:

class Coord(CompoundParam):
    x: int
    y: int

An instance of the Coord class can be created normally, and Params can be accessed as normal attributes:

coord = Coord()
coord.x = 4

When a Param value is set, the valueChanged signal is emitted. Params can be serialized and deserialized to and from JSON. Params can also be nested:

class Atom(CompoundParam):
    coord: Coord
    element: str
progress_stringChanged
progress_stringReplaced
property(self, name: str) → Any
pyqtConfigure(...)

Each keyword argument is either the name of a Qt property or a Qt signal. For properties the property is set to the given value which should be of an appropriate type. For signals the signal is connected to the given value which should be a callable.

receivers(self, signal: PYQT_SIGNAL) → int
removeEventFilter(self, a0: QObject)
replicate()

Create a new task with the same input and settings (but no output)

requestInterruption()

Request the task to stop.

To enable this feature, subclasses should periodically check whether an interruption has been requested and terminate if it has been. If such logic has been included, INTERRUPT_ENABLED should be set to True.

reset(*args, **kwargs)

Resets this compound param to its default value:

class Line(CompoundParam):
    start = Coord(x=1, y=2)
    end = Coord(x=4, y=5)
line = Line()
line.start.x = line.end.x = 10
assert line.start.x == line.end.x == 10
line.reset()
assert line.start.x == 1
assert line.end.x == 4

Any number of abstract params may be passed in to perform a partial reset of only the specified params:

line.start.x = line.end.x = 10
line.reset(Line.start.x)  # resets just start.x
assert line.start.x == 1
assert line.end.x == 10

line.reset(Line.end)      # resets the entire end point
assert line.end.x == 4

line.start.y = line.end.y = 10
line.reset(Line.start.y, Line.end.y)  # resets the y-coord of both
assert line.start.y == 2
assert line.end.y == 5
runPreprocessing(callback=None, calling_context=None)

Run the preprocessors one-by-one. By default, any failing preprocessor will raise a TaskFailure exception and terminate processing. This behavior may be customized by supplying a callback function which will be called after each preprocessor with the result of that preprocessor.

This method is “final” so that all preprocessing logic will be enclosed in the try/finally block.

Parameters

  • callback – a function that takes result and returns a bool that indicates whether to continue on to the next preprocessor

  • calling_context – specify a value here to indicate the context in which this preprocessing is being called. This value will be stored in an instance variable, self.calling_context, which can be accessed from any preprocessor method on this task. Typically this value will be either self.GUI, self.CMDLINE, or None, but any value may be supplied here and checked for in the preprocessor methods. self.calling_context always reverts back to None at the end of runPreprocessing.

sender(self) → QObject
senderSignalIndex(self) → int
setObjectName(self, name: str)
classmethod setParamValue(obj, value)

Set the value of a param on an object by specifying the instance and the value:

# Setting the param value of a basic param
a = Atom()
Atom.coord.x.setParamValue(a, 5)
assert a.coord.x == 5

# setParamValue can also be used to set the value of CompoundParams
c = Coord()
c.x = 10
atom.coord.setParamValue(a, c)
assert atom.coord.x == 10
Parameters

  • param – The owner param to set a subparam value of.

  • value – The value to set the subparam value to.

setParent(self, a0: QObject)
setProperty(self, name: str, value: Any) → bool
classmethod setReference(param1, param2)

Call this class method from configureParam to indicate that two params should be kept in sync. The initial values will start with the default value of param1. Example:

class Square(CompoundParam):
    width: float = 5
    height: float = 10

    @classmethod
    def configureParam(cls):
        super().configureParam()
        cls.setReference(cls.width, cls.height)

square = Square()
assert square.width == square.height == 5 # Default value of width
                                          # takes priority
square.height = 7
assert square.width == square.height == 7
square.width = 6
assert square.width == square.height == 6
Parameters

  • param1 – The first abstract param to keep synced

  • param2 – The second abstract param. After instantiation, this param will take on the value of param1.

setValue(value=None, **kwargs)

Set the value of this CompoundParam to match value.

Parameters

  • value – The value to set this CompoundParam to. It should be the same type as this CompoundParam.

  • kwargs – For internal use only.

signalsBlocked(self) → bool
skip_eq_check()
specifyTaskDir(taskdir_spec)

Specify the taskdir creation behavior. Use one of the following options:

A directory name (string). This may be a relative or absolute path

None - no taskdir is requested. The task will use the CWD as its taskdir

AUTO_TASKDIR - a new subdirectory will be created in the CWD using the task name as the directory name.

TEMP_TASKDIR - a temporary directory will be created in the schrodinger temp dir. This directory is cleaned up when the task is deleted.

Parameters

taskdir_spec – one of the four options listed above

start(skip_preprocessing=False)

This is the main method for starting a task. Start will check if a task is not already running, run preprocessing, and then run the task.

Failures in preprocessing will interrupt the task start, and the task will never enter the RUNNING state.

Parameters

skip_preprocessing (bool) – whether to skip preprocessing. This can be useful if preprocessing was already performed prior to calling start.

startTimer(self, interval: int, timerType: Qt.TimerType = Qt.CoarseTimer) → int
staticMetaObject = <PyQt6.QtCore.QMetaObject object>
status: schrodinger.tasks.tasks.Status
statusChanged
statusReplaced
taskDirSetting()

Returns the taskdir spec. See specifyTaskDir() for details.

taskDone
taskFailed
taskStarted
thread(self) → QThread
timerEvent(self, a0: QTimerEvent)
toDict()

Return a dictionary version of this CompoundParam. The returned dictionary is fully nested and contains no CompoundParam instances

a = Atom()
a_dict = a.toDict()
assert a_dict['coord']['x'] == 0
assert a_dict['coord'] == {'x':0, 'y':0}
toJson(_mark_version=True)

Create and returns a data structure made up of jsonable items.

Return type

An instance of one the classes from NATIVE_JSON_DATATYPES

toJsonImplementation()

Returns a JSON representation of this value object.

Warning

This should never be called directly.

tr(sourceText: str, disambiguation: typing.Optional[str] = None, n: int = - 1) → str
valueChanged
wait(timeout=None)

Block until the task is finished executing or timeout seconds have passed.

Warning

This should not be called directly from GUI code - see PANEL-18317. It is safe to call inside a subprocess or job. Run git grep "task.wait(" to see safe examples annotated with “# OK”.

Parameters

timeout (NoneType or int) – Amount of time in seconds to wait before timing out. If None or a negative number, this method will wait until the task is finished.

__init__(*args, **kwargs)
static guard_method(func)
run()
setUpMain()