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312 lines
9.5 KiB
Python
312 lines
9.5 KiB
Python
"""Example Google style docstrings.
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This module demonstrates documentation as specified by the `Google Python
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Style Guide`_. Docstrings may extend over multiple lines. Sections are created
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with a section header and a colon followed by a block of indented text.
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Example:
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Examples can be given using either the ``Example`` or ``Examples``
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sections. Sections support any reStructuredText formatting, including
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literal blocks::
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$ python example_google.py
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Section breaks are created by resuming unindented text. Section breaks
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are also implicitly created anytime a new section starts.
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Attributes:
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module_level_variable1 (int): Module level variables may be documented in
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either the ``Attributes`` section of the module docstring, or in an
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inline docstring immediately following the variable.
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Either form is acceptable, but the two should not be mixed. Choose
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one convention to document module level variables and be consistent
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with it.
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Todo:
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* For module TODOs
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* You have to also use ``sphinx.ext.todo`` extension
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.. _Google Python Style Guide:
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https://google.github.io/styleguide/pyguide.html
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"""
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module_level_variable1 = 12345
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module_level_variable2 = 98765
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"""int: Module level variable documented inline.
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The docstring may span multiple lines. The type may optionally be specified
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on the first line, separated by a colon.
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"""
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def function_with_types_in_docstring(param1, param2):
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"""Example function with types documented in the docstring.
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:pep:`484` type annotations are supported. If attribute, parameter, and
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return types are annotated according to `PEP 484`_, they do not need to be
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included in the docstring:
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Args:
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param1 (int): The first parameter.
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param2 (str): The second parameter.
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Returns:
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bool: The return value. True for success, False otherwise.
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"""
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def function_with_pep484_type_annotations(param1: int, param2: str) -> bool:
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"""Example function with PEP 484 type annotations.
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Args:
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param1: The first parameter.
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param2: The second parameter.
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Returns:
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The return value. True for success, False otherwise.
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"""
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def module_level_function(param1, param2=None, *args, **kwargs):
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"""This is an example of a module level function.
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Function parameters should be documented in the ``Args`` section. The name
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of each parameter is required. The type and description of each parameter
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is optional, but should be included if not obvious.
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If ``*args`` or ``**kwargs`` are accepted,
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they should be listed as ``*args`` and ``**kwargs``.
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The format for a parameter is::
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name (type): description
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The description may span multiple lines. Following
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lines should be indented. The "(type)" is optional.
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Multiple paragraphs are supported in parameter
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descriptions.
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Args:
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param1 (int): The first parameter.
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param2 (:obj:`str`, optional): The second parameter. Defaults to None.
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Second line of description should be indented.
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*args: Variable length argument list.
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**kwargs: Arbitrary keyword arguments.
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Returns:
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bool: True if successful, False otherwise.
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The return type is optional and may be specified at the beginning of
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the ``Returns`` section followed by a colon.
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The ``Returns`` section may span multiple lines and paragraphs.
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Following lines should be indented to match the first line.
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The ``Returns`` section supports any reStructuredText formatting,
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including literal blocks::
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{
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'param1': param1,
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'param2': param2,
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}
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Raises:
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AttributeError: The ``Raises`` section is a list of all exceptions
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that are relevant to the interface.
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ValueError: If `param2` is equal to `param1`.
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"""
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if param1 == param2:
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msg = 'param1 may not be equal to param2'
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raise ValueError(msg)
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return True
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def example_generator(n):
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"""Generators have a ``Yields`` section instead of a ``Returns`` section.
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Args:
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n (int): The upper limit of the range to generate, from 0 to `n` - 1.
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Yields:
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int: The next number in the range of 0 to `n` - 1.
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Examples:
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Examples should be written in doctest format, and should illustrate how
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to use the function.
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>>> print([i for i in example_generator(4)])
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[0, 1, 2, 3]
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"""
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yield from range(n)
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class ExampleError(Exception):
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"""Exceptions are documented in the same way as classes.
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The __init__ method may be documented in either the class level
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docstring, or as a docstring on the __init__ method itself.
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Either form is acceptable, but the two should not be mixed. Choose one
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convention to document the __init__ method and be consistent with it.
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Note:
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Do not include the `self` parameter in the ``Args`` section.
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Args:
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msg (str): Human readable string describing the exception.
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code (:obj:`int`, optional): Error code.
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Attributes:
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msg (str): Human readable string describing the exception.
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code (int): Exception error code.
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"""
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def __init__(self, msg, code):
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self.msg = msg
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self.code = code
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class ExampleClass:
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"""The summary line for a class docstring should fit on one line.
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If the class has public attributes, they may be documented here
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in an ``Attributes`` section and follow the same formatting as a
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function's ``Args`` section. Alternatively, attributes may be documented
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inline with the attribute's declaration (see __init__ method below).
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Properties created with the ``@property`` decorator should be documented
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in the property's getter method.
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Attributes:
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attr1 (str): Description of `attr1`.
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attr2 (:obj:`int`, optional): Description of `attr2`.
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"""
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def __init__(self, param1, param2, param3):
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"""Example of docstring on the __init__ method.
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The __init__ method may be documented in either the class level
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docstring, or as a docstring on the __init__ method itself.
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Either form is acceptable, but the two should not be mixed. Choose one
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convention to document the __init__ method and be consistent with it.
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Note:
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Do not include the `self` parameter in the ``Args`` section.
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Args:
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param1 (str): Description of `param1`.
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param2 (:obj:`int`, optional): Description of `param2`. Multiple
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lines are supported.
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param3 (list(str)): Description of `param3`.
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"""
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self.attr1 = param1
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self.attr2 = param2
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self.attr3 = param3 #: Doc comment *inline* with attribute
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#: list(str): Doc comment *before* attribute, with type specified
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self.attr4 = ['attr4']
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self.attr5 = None
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"""str: Docstring *after* attribute, with type specified."""
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@property
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def readonly_property(self):
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"""str: Properties should be documented in their getter method."""
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return 'readonly_property'
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@property
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def readwrite_property(self):
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"""list(str): Properties with both a getter and setter
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should only be documented in their getter method.
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If the setter method contains notable behavior, it should be
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mentioned here.
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"""
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return ['readwrite_property']
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@readwrite_property.setter
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def readwrite_property(self, value):
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_ = value
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def example_method(self, param1, param2):
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"""Class methods are similar to regular functions.
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Note:
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Do not include the `self` parameter in the ``Args`` section.
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Args:
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param1: The first parameter.
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param2: The second parameter.
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Returns:
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True if successful, False otherwise.
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"""
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return True
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def __special__(self):
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"""By default special members with docstrings are not included.
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Special members are any methods or attributes that start with and
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end with a double underscore. Any special member with a docstring
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will be included in the output, if
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``napoleon_include_special_with_doc`` is set to True.
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This behavior can be enabled by changing the following setting in
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Sphinx's conf.py::
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napoleon_include_special_with_doc = True
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"""
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pass
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def __special_without_docstring__(self):
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pass
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def _private(self):
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"""By default private members are not included.
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Private members are any methods or attributes that start with an
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underscore and are *not* special. By default they are not included
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in the output.
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This behavior can be changed such that private members *are* included
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by changing the following setting in Sphinx's conf.py::
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napoleon_include_private_with_doc = True
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"""
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pass
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def _private_without_docstring(self):
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pass
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class ExamplePEP526Class:
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"""The summary line for a class docstring should fit on one line.
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If the class has public attributes, they may be documented here
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in an ``Attributes`` section and follow the same formatting as a
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function's ``Args`` section. If ``napoleon_attr_annotations``
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is True, types can be specified in the class body using ``PEP 526``
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annotations.
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Attributes:
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attr1: Description of `attr1`.
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attr2: Description of `attr2`.
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"""
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attr1: str
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attr2: int
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