Type hints support for the Sphinx autodoc extension

Last update: Dec 29, 2022

Related tags

Overview

sphinx-autodoc-typehints

This extension allows you to use Python 3 annotations for documenting acceptable argument types and return value types of functions. This allows you to use type hints in a very natural fashion, allowing you to migrate from this:

def format_unit(value, unit):
    """
    Formats the given value as a human readable string using the given units.

    :param float|int value: a numeric value
    :param str unit: the unit for the value (kg, m, etc.)
    :rtype: str
    """
    return '{} {}'.format(value, unit)

to this:

from typing import Union

def format_unit(value: Union[float, int], unit: str) -> str:
    """
    Formats the given value as a human readable string using the given units.

    :param value: a numeric value
    :param unit: the unit for the value (kg, m, etc.)
    """
    return '{} {}'.format(value, unit)

Installation and setup

First, use pip to download and install the extension:

$ pip install sphinx-autodoc-typehints

Then, add the extension to your conf.py:

extensions = [
    'sphinx.ext.autodoc',
    'sphinx_autodoc_typehints'
]

Options

The following configuration options are accepted:

set_type_checking_flag (default: False): if True, set typing.TYPE_CHECKING to True to enable "expensive" typing imports
typehints_fully_qualified (default: False): if True, class names are always fully qualified (e.g. module.for.Class). If False, just the class name displays (e.g. Class)
always_document_param_types (default: False): If False, do not add type info for undocumented parameters. If True, add stub documentation for undocumented parameters to be able to add type info.
typehints_document_rtype (default: True): If False, never add an :rtype: directive. If True, add the :rtype: directive if no existing :rtype: is found.

How it works

The extension listens to the autodoc-process-signature and autodoc-process-docstring Sphinx events. In the former, it strips the annotations from the function signature. In the latter, it injects the appropriate :type argname: and :rtype: directives into the docstring.

Only arguments that have an existing :param: directive in the docstring get their respective :type: directives added. The :rtype: directive is added if and only if no existing :rtype: is found.

Compatibility with sphinx.ext.napoleon

To use sphinx.ext.napoleon with sphinx-autodoc-typehints, make sure you load sphinx.ext.napoleon first, before sphinx-autodoc-typehints. See Issue 15 on the issue tracker for more information.

Dealing with circular imports

Sometimes functions or classes from two different modules need to reference each other in their type annotations. This creates a circular import problem. The solution to this is the following:

Import only the module, not the classes/functions from it
Use forward references in the type annotations (e.g. def methodname(self, param1: 'othermodule.OtherClass'):)

On Python 3.7, you can even use from __future__ import annotations and remove the quotes.

Using type hint comments

If you're documenting code that needs to stay compatible with Python 2.7, you cannot use regular type annotations. Instead, you must either be using Python 3.8 or later or have typed_ast installed. The package extras type_comments will pull in the appropiate dependencies automatically. Then you can add type hint comments in the following manner:

def myfunction(arg1, arg2):
    # type: (int, str) -> int
    return 42

or alternatively:

def myfunction(
    arg1,  # type: int
    arg2  # type: str
):
    # type: (...) -> int
    return 42

Comments

Reexported classes aren’t linked
For example:

def foo(m: scipy.sparse.spmatrix): pass

Will not get a linked parameter type, since the qualname is scipy.sparse.base.spmatrix, and :class:`~scipy.sparse.spmatrix` will therefore point nowhere in the docs index.
opened by flying-sheep 35

Cannot resolve forward reference

Code:

if TYPE_CHECKING:
    from qc.model.user import User

...

    @property
    @abstractmethod
    def owner(self) -> "User":
        ...

Error with set_type_checking_flag = False:

WARNING: Cannot resolve forward reference in type annotations of "qc.db.Owned.owner": name 'User' is not defined                                                                                             

Exception occurred:
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/inspect.py", line 786, in findsource                                                                                                 
    raise OSError('could not get source code')
OSError: could not get source code

Error with set_type_checking_flag = True:

WARNING: autodoc: failed to import module 'app' from module 'qc'; the following exception was raised:
cannot import name 'User' from 'qc.model.user' (/Users/cyber/dev/jb/qc/qc-backend/qc/model/user.py)
WARNING: autodoc: failed to import module 'commands' from module 'qc'; the following exception was raised:
cannot import name 'TSTZ' from 'qc.db' (/Users/cyber/dev/jb/qc/qc-backend/qc/db/__init__.py)
... [many more]
cannot import name 'User' from 'qc.model.user' (/Users/cyber/dev/jb/qc/qc-backend/qc/model/user.py)
cannot import name 'User' from 'qc.model.user' (/Users/cyber/dev/jb/qc/qc-backend/qc/model/user.py)
cannot import name 'User' from 'qc.model.user' (/Users/cyber/dev/jb/qc/qc-backend/qc/model/user.py)
WARNING: autodoc: failed to import module 'test' from module 'qc'; the following exception was raised:
cannot import name 'User' from 'qc.model.user' (/Users/cyber/dev/jb/qc/qc-backend/qc/model/user.py)

Using sphinx-apidoc and python 3.7.

duplicate

opened by revmischa 28

Update special dataclass handling

The existing unit tests appear to catch this regression when running with a python version that exhibits this change, so I didn't add an additional protection.

Please let me know I'm missing anything in this patch. Thanks for a great tool!

opened by lbenezriravin 24
Allow py310 style annotations (PEP563) when using from __future__ import annotations
This allows one to annotate in Python 3.10 style (PEP563) when from __future__ import annotations is used.

e.g.:

from __future__ import annotations def f(x: int | None) -> int: pass

will work
opened by basnijholt 23

Apparent incompatibility with slot wrappers

Here's a traceback for you. I've found this error appears on any class that doesn't explicitly define an __init__() - which means that the __init__ in its dict refers to a C method wrapper.

Python 3.6.

Traceback (most recent call last):
  File "C:\Python36\lib\site-packages\sphinx\cmdline.py", line 296, in main
    app.build(opts.force_all, filenames)
  File "C:\Python36\lib\site-packages\sphinx\application.py", line 333, in build
    self.builder.build_update()
  File "C:\Python36\lib\site-packages\sphinx\builders\__init__.py", line 251, in build_update
    'out of date' % len(to_build))
  File "C:\Python36\lib\site-packages\sphinx\builders\__init__.py", line 265, in build
    self.doctreedir, self.app))
  File "C:\Python36\lib\site-packages\sphinx\environment\__init__.py", line 556, in update
    self._read_serial(docnames, app)
  File "C:\Python36\lib\site-packages\sphinx\environment\__init__.py", line 576, in _read_serial
    self.read_doc(docname, app)
  File "C:\Python36\lib\site-packages\sphinx\environment\__init__.py", line 684, in read_doc
    pub.publish()
  File "C:\Python36\lib\site-packages\docutils\core.py", line 217, in publish
    self.settings)
  File "C:\Python36\lib\site-packages\sphinx\io.py", line 55, in read
    self.parse()
  File "C:\Python36\lib\site-packages\docutils\readers\__init__.py", line 78, in parse
    self.parser.parse(self.input, document)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\__init__.py", line 185, in parse
    self.statemachine.run(inputlines, document, inliner=self.inliner)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\states.py", line 170, in run
    input_source=document['source'])
  File "C:\Python36\lib\site-packages\docutils\statemachine.py", line 239, in run
    context, state, transitions)
  File "C:\Python36\lib\site-packages\docutils\statemachine.py", line 460, in check_line
    return method(match, context, next_state)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\states.py", line 2745, in underline
    self.section(title, source, style, lineno - 1, messages)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\states.py", line 326, in section
    self.new_subsection(title, lineno, messages)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\states.py", line 394, in new_subsection
    node=section_node, match_titles=True)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\states.py", line 281, in nested_parse
    node=node, match_titles=match_titles)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\states.py", line 195, in run
    results = StateMachineWS.run(self, input_lines, input_offset)
  File "C:\Python36\lib\site-packages\docutils\statemachine.py", line 239, in run
    context, state, transitions)
  File "C:\Python36\lib\site-packages\docutils\statemachine.py", line 460, in check_line
    return method(match, context, next_state)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\states.py", line 2318, in explicit_markup
    nodelist, blank_finish = self.explicit_construct(match)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\states.py", line 2330, in explicit_construct
    return method(self, expmatch)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\states.py", line 2073, in directive
    directive_class, match, type_name, option_presets)
  File "C:\Python36\lib\site-packages\docutils\parsers\rst\states.py", line 2122, in run_directive
    result = directive_instance.run()
  File "C:\Python36\lib\site-packages\sphinx\ext\autodoc.py", line 1647, in run
    documenter.generate(more_content=self.content)
  File "C:\Python36\lib\site-packages\sphinx\ext\autodoc.py", line 992, in generate
    self.document_members(all_members)
  File "C:\Python36\lib\site-packages\sphinx\ext\autodoc.py", line 914, in document_members
    check_module=members_check_module and not isattr)
  File "C:\Python36\lib\site-packages\sphinx\ext\autodoc.py", line 989, in generate
    self.add_content(more_content)
  File "C:\Python36\lib\site-packages\sphinx\ext\autodoc.py", line 1362, in add_content
    ModuleLevelDocumenter.add_content(self, more_content)
  File "C:\Python36\lib\site-packages\sphinx\ext\autodoc.py", line 723, in add_content
    for i, line in enumerate(self.process_doc(docstrings)):
  File "C:\Python36\lib\site-packages\sphinx\ext\autodoc.py", line 685, in process_doc
    self.options, docstringlines)
  File "C:\Python36\lib\site-packages\sphinx\application.py", line 589, in emit
    results.append(callback(self, *args))
  File "C:\Python36\lib\site-packages\sphinx_autodoc_typehints.py", line 68, in process_docstring
    type_hints = get_type_hints(obj)
  File "C:\Python36\lib\typing.py", line 1419, in get_type_hints
    'or function.'.format(obj))
TypeError: <slot wrapper '__init__' of 'object' objects> is not a module, class, method, or function.

bug

opened by gdude2002 23

Support TypeVar arguments

Example:

class MyBase:
    """MyBase Doc"""

T = TypeVar('T', bound='MyBase')

class OtherClass:
    """OtherClass Doc"""
    def create_T(cls: Type[T]) -> T:
        """create_T Doc"""
        return cls()

This generates the following Warning: [...] OtherClass.create_T:: WARNING: py:class reference target not found: T

opened by gpkc 22

Error building docs with v1.10

My docs now fail to build with 1.10 (work with 1.9 or lower):

Exception occurred:
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx_autodoc_typehints.py", line 60, in get_annotation_args
    original = getattr(sys.modules[module], class_name)
KeyError: 'numpy'
The full traceback has been saved in /tmp/sphinx-err-e8ca7ci1.log, if you want to report the issue to the developers.

Here's the log file:

# Sphinx version: 2.1.2
# Python version: 3.7.3 (CPython)
# Docutils version: 0.14 
# Jinja2 version: 2.10.1
# Last messages:
#   failed
#   failed: No such config value: typehints_fully_qualified
#   loading intersphinx inventory from https://docs.python.org/objects.inv...
#   intersphinx inventory has moved: https://docs.python.org/objects.inv -> https://docs.python.org/3/objects.inv
#   building [mo]: targets for 0 po files that are out of date
#   building [html]: targets for 61 source files that are out of date
#   updating environment:
#   61 added, 0 changed, 0 removed
#   reading sources... [  1%] api/alibi
#   reading sources... [  3%] api/alibi.confidence
# Loaded extensions:
#   sphinx.ext.mathjax (2.1.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/mathjax.py
#   sphinxcontrib.applehelp (1.0.1) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinxcontrib/applehelp/__init__.py
#   sphinxcontrib.devhelp (1.0.1) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinxcontrib/devhelp/__init__.py
#   sphinxcontrib.htmlhelp (1.0.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinxcontrib/htmlhelp/__init__.py
#   sphinxcontrib.serializinghtml (1.1.3) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinxcontrib/serializinghtml/__init__.py
#   sphinxcontrib.qthelp (1.0.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinxcontrib/qthelp/__init__.py
#   alabaster (0.7.12) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/alabaster/__init__.py
#   sphinx.ext.autodoc (2.1.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/autodoc/__init__.py
#   sphinx.ext.doctest (2.1.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/doctest.py
#   sphinx.ext.intersphinx (2.1.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/intersphinx.py
#   sphinx.ext.todo (2.1.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/todo.py
#   sphinx.ext.coverage (2.1.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/coverage.py
#   sphinx.ext.ifconfig (2.1.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/ifconfig.py
#   sphinx.ext.viewcode (2.1.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/viewcode.py
#   sphinx.ext.napoleon (2.1.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/napoleon/__init__.py
#   sphinx_autodoc_typehints (unknown version) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx_autodoc_typehints.py
#   sphinxcontrib.apidoc (0.3.0) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinxcontrib/apidoc/__init__.py
#   nbsphinx (0.4.2) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/nbsphinx.py
#   nbsphinx_link (1.2.0) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/nbsphinx_link/__init__.py
#   m2r (0.2.1) from /home/janis/.conda/envs/py37/lib/python3.7/site-packages/m2r.py
Traceback (most recent call last):
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/cmd/build.py", line 284, in build_main
    app.build(args.force_all, filenames)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/application.py", line 345, in build
    self.builder.build_update()
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/builders/__init__.py", line 319, in build_update
    len(to_build))
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/builders/__init__.py", line 332, in build
    updated_docnames = set(self.read())
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/builders/__init__.py", line 438, in read
    self._read_serial(docnames)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/builders/__init__.py", line 460, in _read_serial
    self.read_doc(docname)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/builders/__init__.py", line 504, in read_doc
    doctree = read_doc(self.app, self.env, self.env.doc2path(docname))
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/io.py", line 325, in read_doc
    pub.publish()
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/core.py", line 217, in publish
    self.settings)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/io.py", line 113, in read
    self.parse()
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/readers/__init__.py", line 78, in parse
    self.parser.parse(self.input, document)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/parsers.py", line 94, in parse
    self.statemachine.run(inputlines, document, inliner=self.inliner)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/parsers/rst/states.py", line 171, in run
    input_source=document['source'])
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/statemachine.py", line 239, in run
    context, state, transitions)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/statemachine.py", line 460, in check_line
    return method(match, context, next_state)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/parsers/rst/states.py", line 2753, in underline
    self.section(title, source, style, lineno - 1, messages)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/parsers/rst/states.py", line 327, in section
    self.new_subsection(title, lineno, messages)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/parsers/rst/states.py", line 395, in new_subsection
    node=section_node, match_titles=True)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/parsers/rst/states.py", line 282, in nested_parse
    node=node, match_titles=match_titles)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/parsers/rst/states.py", line 196, in run
    results = StateMachineWS.run(self, input_lines, input_offset)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/statemachine.py", line 239, in run
    context, state, transitions)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/statemachine.py", line 460, in check_line
    return method(match, context, next_state)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/parsers/rst/states.py", line 2326, in explicit_markup
    nodelist, blank_finish = self.explicit_construct(match)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/parsers/rst/states.py", line 2338, in explicit_construct
    return method(self, expmatch)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/parsers/rst/states.py", line 2081, in directive
    directive_class, match, type_name, option_presets)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/docutils/parsers/rst/states.py", line 2130, in run_directive
    result = directive_instance.run()
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/autodoc/directive.py", line 150, in run
    documenter.generate(more_content=self.content)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/autodoc/__init__.py", line 760, in generate
    self.document_members(all_members)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/autodoc/__init__.py", line 681, in document_members
    check_module=members_check_module and not isattr)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/autodoc/__init__.py", line 757, in generate
    self.add_content(more_content)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/autodoc/__init__.py", line 495, in add_content
    for i, line in enumerate(self.process_doc(docstrings)):
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/ext/autodoc/__init__.py", line 463, in process_doc
    self.options, docstringlines)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/application.py", line 449, in emit
    return self.events.emit(event, *args)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx/events.py", line 103, in emit
    results.append(callback(self.app, *args))
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx_autodoc_typehints.py", line 368, in process_docstring
    annotation, fully_qualified=app.config.typehints_fully_qualified)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx_autodoc_typehints.py", line 110, in format_annotation
    args = get_annotation_args(annotation, module, class_name)
  File "/home/janis/.conda/envs/py37/lib/python3.7/site-packages/sphinx_autodoc_typehints.py", line 60, in get_annotation_args
    original = getattr(sys.modules[module], class_name)
KeyError: 'numpy'

bug

opened by jklaise 17

Strip annotations from initializer signatures

In process_signature(), the test getattr(obj, '__annotations__', None) fails for classes because it tests against the class object itself and not the initializer method. This results in type annotations not being stripped from the initializer signatures.

This PR just grabs the initializer method before continuing with the test for the presence of annotations.

opened by josiah-wolf-oberholtzer 17
Python type hint: NameError: name '...' is not defined
Usecase:

class Foo(object): def __init__(self): pass def get_foo(self, name:str) -> 'Foo' : return self

The above is a simple example of the issue I am facing. Python type hints supports ' ' to be used when the class is not defined and will be defined at a later stage. Sphinx documentation using your extension fails because Foo is not defined.

Note: I have also tried adding a __main__ method, thinking it might stop auto-execution, but I ended up having the same error.

Stacktrace
bug
opened by kingspp 17
process_signature silently drops any docstring-specified signature

process_signature gets the argspec from the object itself, so any docstring-specified signature (http://www.sphinx-doc.org/en/stable/ext/autodoc.html#confval-autodoc_docstring_signature) gets silently dropped.

See e.g. http://defopt.readthedocs.io/en/stable/api.html#defopt.run vs https://github.com/evanunderscore/defopt/blob/a03769b931460ce9234c02351f4ee7fe9d055fee/defopt.py#L68 (defopt.run should be listed in the docs with the signature run(funcs, *, parsers=None, short=None, show_types=False, argv=None)).

Given that you can't necessarily afford to eval the annotations that may exist in a docstring-specified signature (and you actually want their string representations anyways), I guess a correct approach when such a signature is present (although a bit a pain to implement?) would be to parse the signature into an AST, fetch out the parts of the AST corresponding to the annotations, map them back to the string using the AST col_offset, and remove them thusly (and move them to the docstring). Or perhaps there's some smarter approach...

opened by anntzer 16

Getting an `IndentationError` related specifically to a doc string while building.

I've encountered a Sphinx bug which I reported here, and it was pointed out to me (via the log) that the error was raised by sphinx-autodoc-hints. The report is duplicated below.

I'm getting the following error when trying to build HTML files:

/usr/local/anaconda/lib/python3.7/site-packages/sphinx/util/inspect.py:555: RemovedInSphinx40Warning: sphinx.util.inspect.Signature() is deprecated
  RemovedInSphinx40Warning)

Exception occurred:
  File "/usr/local/anaconda/lib/python3.7/site-packages/typed_ast/ast3.py", line 62, in parse
    return _ast3._parse(source, filename, mode, feature_version)
  File "<unknown>", line 1
    @classmethod
    ^
IndentationError: unexpected indent
The full traceback has been saved in /var/folders/yp/lf1xdvp165n5xb7hcrwzpngc0000gn/T/sphinx-err-jidws8_h.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!
make: *** [html] Error 2

The code that it's getting caught on is this:

	@classmethod
	def fromFITSHeader(cls, fits_header=None, uncertainty=4.848e-6):
		'''
		Factory method to create a region from the provided FITS header; the returned object will be as specific as possible (but probably an ASTPolygon).
		
		:param fits_header: a FITS header (Astropy, fitsio, an array of cards)
		:param uncertainty: defaults to 4.848e-6, an uncertainty of 1 arcsec
		'''
		if fits_header is None:
			raise ValueError("This method requires a 'fits_header' to be set.")

		. . .

I am sure the problem is not an indentation error (at least as far as the Python code). When I delete the entire docstring, make html works without error. Any docstring I add causes the error, even a blank one, e.g.

'''

'''

The Sphinx log is attached here: sphinx-err-gnkuj5m5.log

Thanks!

duplicate

opened by demitri 15

canot find the signature of a method when setting up this extension
I would like to start using type hinting in my lib to improve the quality of the code. I started small by simply changing few of the methods and installing this extention in my documentation. When I run the doc build (using the classic make html shipped with sphinx quickstart) I get the following error (sorry for the french):

Le gestionnaire <function process_signature at 0x114c9d280> de l'évènement 'autodoc-process-signature' a créé une exception. (exception: no signature found for builtin <traitlets.traitlets.ObserveHandler object at 0x104b825e0>)

I wasn't very lucky on Google with this one and I have several questions to identify what is happening here:

is it something you have already seen?

my lib is now big, how can I know which file triggered the error?

could it be related to the fact ObserverHandler is only use with decorators?

why is it working without this extention ?

In case you need an example I pushed my branch here: https://github.com/12rambau/sepal_ui/commit/0ef46da331432bebf7b2a6b3934f050cb0291325
opened by 12rambau 0
Incorrect rename of extra `type-comments`
The change introduced in https://github.com/tox-dev/sphinx-autodoc-typehints/commit/ccc75d244d0f4452048f80fc73e39a34a4eefc00 renamed the extra type-comments to type-comment (no s), causing mismatched warnings when installing with pip:

pip install "sphinx-autodoc-typehints[type_comments]<1.19" # OK pip install "sphinx-autodoc-typehints[type_comments]>=1.19" [...] WARNING: sphinx-autodoc-typehints 1.19.4 does not provide the extra 'type_comments' [...]
opened by fmigneault 0
Problem with resolving MutableMapping with type subscripts
This worked fine is version 1.14.1 and earlier but starting in 1.15.0 I get TypeError: ABCMeta is not subscriptable.

I have code that's something like this:

from typing import TYPE_CHECKING if TYPE_CHECKING: MyBaseType = MutableMapping[str, Any] else: MyBaseType = MutableMapping class MyCustomClass(MyBaseType): ...
opened by anselor 0
Every warning/error should provide useful context

Warnings/errors with generic messages do not provide context for what in the code caused the error.

Specifically, I ran into it here:

https://github.com/tox-dev/sphinx-autodoc-typehints/blob/bf27befb610426838d1f2926e470815c47cc8ab8/src/sphinx_autodoc_typehints/init.py#L343

I changed that log to also print guarded_code and it helped a lot. But I really think it should reraise the exception with the guarded_code and then catch and log it here with additional context:

https://github.com/tox-dev/sphinx-autodoc-typehints/blob/bf27befb610426838d1f2926e470815c47cc8ab8/src/sphinx_autodoc_typehints/init.py#L347

opened by anselor 1
`typehints_defaults` does not work when missing python3 sytle type hints
Given function signature

def grid_archive_heatmap(archive, ax=None, ... )

and setting typehints_defaults = "comma" ("braces", "braces-after") . sphinx-autodoc-typehints does not correctly add a "default=" clause for the argument ax in the documentation.

This problem was encountered at https://github.com/icaros-usc/pyribs/pull/204.
bug help wanted
opened by itsdawei 1

get_annotation_class_name() not always returning string

We encountered the following error while setting a return type which mocked in Sphinx config using a custom Mock object

Handler <function process_docstring at 0x7f6c16c8ec10> for event 'autodoc-process-docstring' threw an exception (exception: getattr(): attribute name must be string)

The actual exception is raised in get_annotation_args in this line due to a class_name not being str:

original = getattr(sys.modules[module], class_name)

Looking further into PR #145 was opened to track this issue as they also found that get_annotation_class_name is not always retuning a str but it seems was never fixed.

A quick example to show how the custom Mock does not return str for __qualname__ or _name attributes:

>>> class Mock:
    __all__ = []
    def __init__(self, *args, **kwargs):
        pass
    def __call__(self, *args, **kwargs):
        return ''
    @classmethod
    def __getattr__(cls, name):
        return Mock()
    def __add__(self, other):
        return other
    def __or__(self, __):
        return Mock()
>> Mock()
<__main__.Mock object at 0x7f22528baf40>
>>> m =Mock()
>>> m.__qualname__
<class '__main__.__qualname__'>
>>> m._name
<class '__main__._name'>
>>> getattr(m, m.__qualname__)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: getattr(): attribute name must be string

We can workaround the issue by not using the custom mock any more but it is still an inconvenience

help wanted

opened by cas-- 1

Releases(1.19.5)

1.19.5(Nov 2, 2022)
What's Changed

[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/262

[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/264

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Add link to pyproject-api docs as example of this extension by @ketozhang in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/267

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1.19.4(Sep 27, 2022)
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Fix IndexError for line and keyword split by @gaborbernat in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/261

Full Changelog: https://github.com/tox-dev/sphinx-autodoc-typehints/compare/1.19.3...1.19.4
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[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/251

[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/252

Add support for paramspec by @Numerlor in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/255

allow starred args and kwargs in docstring params by @Numerlor in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/254

Fix the CI by @gaborbernat in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/258

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Add support for recursive type hints by @hmc-cs-mdrissi in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/248

New Contributors

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1.19.0(Jul 27, 2022)
What's Changed

Bump actions/download-artifact from 2 to 3 by @dependabot in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/240

Bump actions/checkout from 2 to 3 by @dependabot in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/241

Bump actions/setup-python from 2 to 4 by @dependabot in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/242

Bump actions/upload-artifact from 2 to 3 by @dependabot in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/243

[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/236

[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/244

[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/245

[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/246

Check 3.11 support by @gaborbernat in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/247

New Contributors

@dependabot made their first contribution in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/240

Full Changelog: https://github.com/tox-dev/sphinx-autodoc-typehints/compare/1.18.3...1.19.0
Source code(tar.gz)
Source code(zip)
1.18.3(Jun 10, 2022)
What's Changed

Fix for new nptyping by @gaborbernat in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/235

Full Changelog: https://github.com/tox-dev/sphinx-autodoc-typehints/compare/1.18.2...1.18.3
Source code(tar.gz)
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1.18.2(Jun 3, 2022)
What's Changed

[pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/230

Support and require nptyping 2.1.1 by @gaborbernat in https://github.com/tox-dev/sphinx-autodoc-typehints/pull/232

Full Changelog: https://github.com/tox-dev/sphinx-autodoc-typehints/compare/1.18.1...1.18.2
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Related tags

Overview

sphinx-autodoc-typehints

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How it works

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MkDocs plugin for setting revision date from git per markdown file

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