[3.9] bpo-40204: Allow pre-Sphinx 3 syntax in the doc (GH-21844) (GH-21901)
* bpo-40204: Allow pre-Sphinx 3 syntax in the doc (GH-21844)
Enable Sphinx 3.2 "c_allow_pre_v3" option and disable the
c_warn_on_allowed_pre_v3 option to make the documentation compatible
with Sphinx 2 and Sphinx 3.
(cherry picked from commit 423e77d6de497931585d1883805a9e3fa4096b0b)
* bpo-40204: Fix Sphinx sytanx in howto/instrumentation.rst (GH-21858)
Use generic '.. object::' to declare markers, rather than abusing
'.. c:function::' which fails on Sphinx 3.
(cherry picked from commit 43577c01a2ab49122db696e9eaec6cb31d11cc81)
* bpo-40204: Fix duplicates in the documentation (GH-21857)
Fix two Sphinx 3 issues:
Doc/c-api/buffer.rst:304: WARNING: Duplicate C declaration, also defined in 'c-api/buffer'.
Declaration is 'PyBUF_ND'.
Doc/c-api/unicode.rst:1603: WARNING: Duplicate C declaration, also defined in 'c-api/unicode'.
Declaration is 'PyObject* PyUnicode_Translate(PyObject *str, PyObject *table, const char *errors)'.
(cherry picked from commit 46d10b1237c67ff8347f533eda6a5468d098f7eb)
* bpo-40204: Add :noindex: in the documentation (GH-21859)
Add :noindex: to duplicated documentation to fix "duplicate object
description" errors.
For example, fix this Sphinx 3 issue:
Doc/library/configparser.rst:1146: WARNING: duplicate object
description of configparser.ConfigParser.optionxform, other instance
in library/configparser, use :noindex: for one of them
(cherry picked from commit d3ded080482beae578faa704b13534a62d066f9f)
* bpo-40204, doc: Fix syntax of C variables (GH-21846)
For example, fix the following Sphinx 3 errors:
Doc/c-api/buffer.rst:102: WARNING: Error in declarator or parameters
Invalid C declaration: Expected identifier in nested name. [error at 5]
void \*obj
-----^
Doc/c-api/arg.rst:130: WARNING: Unparseable C cross-reference: 'PyObject*'
Invalid C declaration: Expected end of definition. [error at 8]
PyObject*
--------^
The modified documentation is compatible with Sphinx 2 and Sphinx 3.
(cherry picked from commit 474652fe9346382dbf793f20b671eb74668bebde)
* bpo-40204: Fix reference to terms in the doc (GH-21865)
Sphinx 3 requires to refer to terms with the exact case.
For example, fix the Sphinx 3 warning:
Doc/library/pkgutil.rst:71: WARNING: term Loader not found in case
sensitive match.made a reference to loader instead.
(cherry picked from commit bb0b08540cc93e56f3f1bde1b39ce086d9e35fe1)
* bpo-40204: Fix duplicated productionlist names in the doc (GH-21900)
Sphinx 3 disallows having more than one productionlist markup with
the same name. Simply remove names in this case, since names are not
shown anyway. For example, fix the Sphinx 3 warning:
Doc/reference/introduction.rst:96: duplicate token description
of *:name, other instance in reference/expressions
(cherry picked from commit 1abeda80f760134b4233608e2c288790f955b95a)
diff --git a/Doc/library/difflib.rst b/Doc/library/difflib.rst
index 7a898c2..25e3511 100644
--- a/Doc/library/difflib.rst
+++ b/Doc/library/difflib.rst
@@ -24,6 +24,7 @@
.. class:: SequenceMatcher
+ :noindex:
This is a flexible class for comparing pairs of sequences of any type, so long
as the sequence elements are :term:`hashable`. The basic algorithm predates, and is a
@@ -651,6 +652,7 @@
.. class:: Differ(linejunk=None, charjunk=None)
+ :noindex:
Optional keyword parameters *linejunk* and *charjunk* are for filter functions
(or ``None``):