Update sphinx to 4.1.0

[pyup-bot]

This PR updates Sphinx from 3.5.3 to 4.1.0.

Changelog

4.1.0

=====================================

Dependencies
------------

* Support jinja2-3.0

Deprecated
----------

* The ``app`` argument of ``sphinx.environment.BuildEnvironment`` becomes
required
* ``sphinx.application.Sphinx.html_theme``
* ``sphinx.ext.autosummary._app``
* ``sphinx.util.docstrings.extract_metadata()``

Features added
--------------

* 8107: autodoc: Add ``class-doc-from`` option to :rst:dir:`autoclass`
directive to control the content of the specific class like
:confval:`autoclass_content`
* 8588: autodoc: :confval:`autodoc_type_aliases` now supports dotted name. It
allows you to define an alias for a class with module name like
``foo.bar.BazClass``
* 9175: autodoc: Special member is not documented in the module
* 9195: autodoc: The arguments of ``typing.Literal`` are wrongly rendered
* 9185: autodoc: :confval:`autodoc_typehints` allows ``'both'`` setting to
allow typehints to be included both in the signature and description
* 4257: autodoc: Add :confval:`autodoc_class_signature` to separate the class
entry and the definition of ``__init__()`` method
* 8061, 9218: autodoc: Support variable comment for alias classes
* 3014: autodoc: Add :event:`autodoc-process-bases` to modify the base classes
of the class definitions
* 9272: autodoc: Render enum values for the default argument value better
* 9384: autodoc: ``autodoc_typehints='none'`` now erases typehints for
variables, attributes and properties
* 3257: autosummary: Support instance attributes for classes
* 9358: html: Add "heading" role to the toctree items
* 9225: html: Add span tag to the return typehint of method/function
* 9129: html search: Show search summaries when html_copy_source = False
* 9307: html search: Prevent corrections and completions in search field
* 9120: html theme: Eliminate prompt characters of code-block from copyable
text
* 9176: i18n: Emit a debug message if message catalog file not found under
:confval:`locale_dirs`
* 9414: LaTeX: Add xeCJKVerbAddon to default fvset config for Chinese documents
* 9016: linkcheck: Support checking anchors on github.com
* 9016: linkcheck: Add a new event :event:`linkcheck-process-uri` to modify
URIs before checking hyperlinks
* 6525: linkcheck: Add :confval:`linkcheck_allowed_redirects` to mark
hyperlinks that are redirected to expected URLs as "working"
* 1874: py domain: Support union types using ``|`` in info-field-list
* 9268: py domain: :confval:`python_use_unqualified_type_names` supports type
field in info-field-list
* 9097: Optimize the parallel build
* 9131: Add :confval:`nitpick_ignore_regex` to ignore nitpicky warnings using
regular expressions
* 9174: Add ``Sphinx.set_html_assets_policy`` to tell extensions to include
HTML assets in all the pages. Extensions can check this via
``Sphinx.registry.html_assets_policy``
* C++, add support for

- ``inline`` variables,
- ``consteval`` functions,
- ``constinit`` variables,
- ``char8_t``,
- ``explicit(<constant expression>)`` specifier,
- digit separators in literals, and
- constraints in placeholder type specifiers, aka. adjective syntax
 (e.g., ``Sortable auto &v``).

* C, add support for digit separators in literals.
* 9166: LaTeX: support containers in LaTeX output


Bugs fixed
----------

* 8872: autodoc: stacked singledispatches are wrongly rendered
* 8597: autodoc: a docsting having metadata only should be treated as
undocumented
* 9185: autodoc: typehints for overloaded functions and methods are inaccurate
* 9250: autodoc: The inherited method not having docstring is wrongly parsed
* 9283: autodoc: autoattribute directive failed to generate document for an
attribute not having any comment
* 9364: autodoc: single element tuple on the default argument value is wrongly
rendered
* 9362: autodoc: AttributeError is raised on processing a subclass of Tuple[()]
* 9404: autodoc: TypeError is raised on processing dict-like object (not a
class) via autoclass directive
* 9317: html: Pushing left key causes visiting the next page at the first page
* 9381: html: URL for html_favicon and html_log does not work
* 9270: html theme : pyramid theme generates incorrect logo links
* 9217: manpage: The name of manpage directory that is generated by
:confval:`man_make_section_directory` is not correct
* 9350: manpage: Fix font isn't reset after keyword at the top of samp role
* 9306: Linkcheck reports broken link when remote server closes the connection
on HEAD request
* 9280: py domain: "exceptions" module is not displayed
* 9418: py domain: a Callable annotation with no parameters
(e.g. ``Callable[[], None])`` will be rendered with a bracket missing
(``Callable[], None]``)
* 9319: quickstart: Make sphinx-quickstart exit when conf.py already exists
* 9387: xml: XML Builder ignores custom visitors
* 9224: ``:param:`` and ``:type:`` fields does not support a type containing
whitespace (ex. ``Dict[str, str]``)
* 8945: when transforming typed fields, call the specified role instead of
making an single xref. For C and C++, use the ``expr`` role for typed fields.

4.0.3

=====================================

Features added
--------------

* C, add C23 keywords ``_Decimal32``, ``_Decimal64``, and ``_Decimal128``.
* 9354: C, add :confval:`c_extra_keywords` to allow user-defined keywords
during parsing.
* Revert the removal of ``sphinx.util:force_decode()`` to become some 3rd party
extensions available again during 5.0

Bugs fixed
----------

* 9330: changeset domain: :rst:dir:`versionchanged` with contents being a list
will cause error during pdf build
* 9313: LaTeX: complex table with merged cells broken since 4.0
* 9305: LaTeX: backslash may cause Improper discretionary list pdf build error
with Japanese engines
* 9354: C, remove special macro names from the keyword list.
See also :confval:`c_extra_keywords`.
* 9322: KeyError is raised on PropagateDescDomain transform

4.0.2

=====================================

Dependencies
------------

* 9216: Support jinja2-3.0

Incompatible changes
--------------------

* 9222: Update Underscore.js to 1.13.1
* 9217: manpage: Stop creating a section directory on build manpage by default
(see :confval:`man_make_section_directory`)

Bugs fixed
----------

* 9210: viewcode: crashed if non importable modules found on parallel build
* 9240: Unknown node error for pending_xref_condition is raised if an extension
that does not support the node installs a missing-reference handler

4.0.1

=====================================

Bugs fixed
----------

* 9189: autodoc: crashed when ValueError is raised on generating signature
from a property of the class
* 9188: autosummary: warning is emitted if list value is set to
autosummary_generate
* 8380: html search: tags for search result are broken
* 9198: i18n: Babel emits errors when running compile_catalog
* 9205: py domain: The :canonical: option causes "more than one target for
cross-reference" warning
* 9201: websupport: UndefinedError is raised: 'css_tag' is undefined

4.0.0

=====================================

Dependencies
------------

4.0.0b3

* 9167: html: Failed to add CSS files to the specific page

4.0.0b2

* C, C++, fix ``KeyError`` when an ``alias`` directive is the first C/C++
directive in a file with another C/C++ directive later.

4.0.0b1

* 8917: autodoc: Raises a warning if function has wrong __globals__ value
* 8415: autodoc: a TypeVar imported from other module is not resolved (in
Python 3.7 or above)
* 8992: autodoc: Failed to resolve types.TracebackType type annotation
* 8905: html: html_add_permalinks=None and html_add_permalinks="" are ignored
* 8380: html search: Paragraphs in search results are not identified as ``<p>``
* 8915: html theme: The translation of sphinx_rtd_theme does not work
* 8342: Emit a warning if a unknown domain is given for directive or role (ex.
``:unknown:doc:``)
* 7241: LaTeX: No wrapping for ``cpp:enumerator``
* 8711: LaTeX: backticks in code-blocks trigger latexpdf build warning (and font
change) with late TeXLive 2019
* 8253: LaTeX: Figures with no size defined get overscaled (compared to images
with size explicitly set in pixels) (fixed for ``'pdflatex'/'lualatex'`` only)
* 8881: LaTeX: The depth of bookmarks panel in PDF is not enough for navigation
* 8874: LaTeX: the fix to two minor Pygments LaTeXFormatter output issues ignore
Pygments style
* 8925: LaTeX: 3.5.0 ``verbatimmaxunderfull`` setting does not work as
expected
* 8980: LaTeX: missing line break in ``\pysigline``
* 8995: LaTeX: legacy ``\pysiglinewithargsret`` does not compute correctly
available  horizontal space and should use a ragged right style
* 9009: LaTeX: "release" value with underscore leads to invalid LaTeX
* 8911: C++: remove the longest matching prefix in
:confval:`cpp_index_common_prefix` instead of the first that matches.
* C, properly reject function declarations when a keyword is used
as parameter name.
* 8933: viewcode: Failed to create back-links on parallel build
* 8960: C and C++, fix rendering of (member) function pointer types in
function parameter lists.
* C++, fix linking of names in array declarators, pointer to member
(function) declarators, and in the argument to ``sizeof...``.
* C, fix linking of names in array declarators.

3.5.5

==============================

3.5.4

=====================================

Dependencies
------------

* 9071: Restrict docutils to 0.16

Bugs fixed
----------

* 9078: autodoc: Async staticmethods and classmethods are considered as non
async coroutine-functions with Python3.10
* 8870, 9001, 9051: html theme: The style are not applied with docutils-0.17

- toctree captions
- The content of ``sidebar`` directive
- figures

Links

• PyPI: https://pypi.org/project/sphinx
• Changelog: https://pyup.io/changelogs/sphinx/
• Homepage: https://sphinx-doc.org/

[pyup-bot]

Closing this in favor of #100