Update sphinx to 2.4.1

[pyup-bot]

This PR updates Sphinx from 2.3.1 to 2.4.1.

Changelog

2.4.1

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

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

* 7120: html: crashed when on scaling SVG images which have float dimentions
* 7126: autodoc: TypeError: 'getset_descriptor' object is not iterable

2.4.0

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

Deprecated
----------

* The ``decode`` argument of ``sphinx.pycode.ModuleAnalyzer()``
* ``sphinx.directives.other.Index``
* ``sphinx.environment.temp_data['gloss_entries']``
* ``sphinx.environment.BuildEnvironment.indexentries``
* ``sphinx.environment.collectors.indexentries.IndexEntriesCollector``
* ``sphinx.ext.apidoc.INITPY``
* ``sphinx.ext.apidoc.shall_skip()``
* ``sphinx.io.FiletypeNotFoundError``
* ``sphinx.io.get_filetype()``
* ``sphinx.pycode.ModuleAnalyzer.encoding``
* ``sphinx.roles.Index``
* ``sphinx.util.detect_encoding()``
* ``sphinx.util.get_module_source()``
* ``sphinx.util.inspect.Signature``
* ``sphinx.util.inspect.safe_getmembers()``
* ``sphinx.writers.latex.LaTeXTranslator.settings.author``
* ``sphinx.writers.latex.LaTeXTranslator.settings.contentsname``
* ``sphinx.writers.latex.LaTeXTranslator.settings.docclass``
* ``sphinx.writers.latex.LaTeXTranslator.settings.docname``
* ``sphinx.writers.latex.LaTeXTranslator.settings.title``
* ``sphinx.writers.latex.ADDITIONAL_SETTINGS``
* ``sphinx.writers.latex.DEFAULT_SETTINGS``
* ``sphinx.writers.latex.LUALATEX_DEFAULT_FONTPKG``
* ``sphinx.writers.latex.PDFLATEX_DEFAULT_FONTPKG``
* ``sphinx.writers.latex.XELATEX_DEFAULT_FONTPKG``
* ``sphinx.writers.latex.XELATEX_GREEK_DEFAULT_FONTPKG``

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

* 6910: inheritance_diagram: Make the background of diagrams transparent
* 6446: duration: Add ``sphinx.ext.durations`` to inspect which documents slow
down the build
* 6837: LaTeX: Support a nested table
* 7115: LaTeX: Allow to override LATEXOPTS and LATEXMKOPTS via environment
variable
* 6966: graphviz: Support ``:class:`` option
* 6696: html: ``:scale:`` option of image/figure directive not working for SVG
images (imagesize-1.2.0 or above is required)
* 6994: imgconverter: Support illustrator file (.ai) to .png conversion
* autodoc: Support Positional-Only Argument separator (PEP-570 compliant)
* autodoc: Support type annotations for variables
* 2755: autodoc: Add new event: :event:`autodoc-before-process-signature`
* 2755: autodoc: Support type_comment style (ex. `` type: (str) -> str``)
annotation (python3.8+ or `typed_ast <https://github.com/python/typed_ast>`_
is required)
* 7051: autodoc: Support instance variables without defaults (PEP-526)
* 6418: autodoc: Add a new extension ``sphinx.ext.autodoc.typehints``. It shows
typehints as object description if ``autodoc_typehints = "description"`` set.
This is an experimental extension and it will be integrated into autodoc core
in Sphinx-3.0
* SphinxTranslator now calls visitor/departure method for super node class if
visitor/departure method for original node class not found
* 6418: Add new event: :event:`object-description-transform`
* py domain: :rst:dir:`py:data` and :rst:dir:`py:attribute` take new options
named ``:type:`` and ``:value:`` to describe its type and initial value
* 6785: py domain: ``:py:attr:`` is able to refer properties again
* 6772: apidoc: Add ``-q`` option for quiet mode

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

* 6925: html: Remove redundant type="text/javascript" from <script> elements
* 7112: html: SVG image is not layouted as float even if aligned
* 6906, 6907: autodoc: failed to read the source codes encoeded in cp1251
* 6961: latex: warning for babel shown twice
* 7059: latex: LaTeX compilation falls into infinite loop (wrapfig issue)
* 6581: latex: ``:reversed:`` option for toctree does not effect to LaTeX build
* 6559: Wrong node-ids are generated in glossary directive
* 6986: apidoc: misdetects module name for .so file inside module
* 6899: apidoc: private members are not shown even if ``--private`` given
* 6327: apidoc: Support a python package consisted of __init__.so file
* 6999: napoleon: fails to parse tilde in :exc: role
* 7019: gettext: Absolute path used in message catalogs
* 7023: autodoc: nested partial functions are not listed
* 7023: autodoc: partial functions imported from other modules are listed as
module members without :impoprted-members: option
* 6889: autodoc: Trailing comma in ``:members::`` option causes cryptic warning
* 6568: autosummary: ``autosummary_imported_members`` is ignored on generating
a stub file for submodule
* 7055: linkcheck: redirect is treated as an error
* 7088: HTML template: If ``navigation_with_keys`` option is activated,
modifier keys are ignored, which means the feature can interfere with browser
features
* 7090: std domain: Can't assign numfig-numbers for custom container nodes
* 7106: std domain: enumerated nodes are marked as duplicated when extensions
call ``note_explicit_target()``
* 7095: dirhtml: Cross references are broken via intersphinx and ``:doc:`` role
* C++:

- Don't crash when using the ``struct`` role in some cases.
- Don't warn when using the ``var``/``member`` role for function
 parameters.
- Render call and braced-init expressions correctly.
* 7097: Filenames of images generated by
``sphinx.transforms.post_transforms.images.ImageConverter``
or its subclasses (used for latex build) are now sanitized,
to prevent broken paths

Links

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