In the build, declare all (compulsory) extension modules together.

This is based on notes I took while making 3.2.1.

BLD: Auto-trigger macOS/Linux wheels on tags.

DOC: Update release guide

Propagate signature-modifying decorators to pyplot wrappers.

…otlib#16724)

* Resolve inconsistent NaN handling behaviour

Combine array masks rather than deleting masked points to maintain
consistency across the project.

Add appropriate test cases for validating color correctness for hlines
and vlines.

Fixes issue matplotlib#13799.

* Fix test cases based on feedback

* Improved test cases

* Refactor masked vertices creation

* Refactor hlines and vlines

Co-authored-by: Dennis Tismenko <dtismenkodeveloper@gmail.com>

TexManager has a complex caching machinery (... among other caching
layers) to map font-related rcParams to a tex preamble (see `_rc_cache`,
`_rc_cache_keys`, `_reinit`) but that's just a matter of a few dict
lookups which are negligible compared to invoking the subprocess; so
just strip out that caching and always regenerate the font-related
preamble.

That caching also set some attributes (`texmanager.serif`, etc.) as a
side-effect via `setattr`/`getattr`, which are used nowhere else (and
it's hard to know they even exist other than figuring out the relevant
`setattr` calls); just deprecate them.

Remove font preamble caching in TexManager.

… on a separate line)

Fix pydocstyle D209 (Multi-line docstring closing separate line)

Now that there's no `class Path` in setupext anymore, we can just do
`from pathlib import Path`.

CI: Unbreak CI by xfailing wxAgg test on macOS

Fix trivial docstring typos.

Partially addresses matplotlib#16883 

Adds `stroke-opacity` to hatch, but only if it's set to anything less than 1.

API: Finish removing mentions of idle_event.

…ions7

Remove more API deprecated in 3.1(part 7)

np.concatenate cleanups.

Move Text init to end of Annotation init.

Deprecate parameter props of Shadow

Dedupe boilerplate for "adoption" of figure into pyplot.

Warn in the docs that MouseEvent.key can be wrong.

Shorten implementation of Axes methods that just wrap Axis methods.

…o file_name_made_more_understandable

Deadline is over for GSoC proposal submissions, so just removed header.

Co-Authored-By: Elliott Sales de Andrade <quantum.analyst@gmail.com>

Co-Authored-By: Elliott Sales de Andrade <quantum.analyst@gmail.com>

…e_more_understandable

File name made more understandable

More missing refs fixes.

Co-Authored-By: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>

Use slope in axline example

Highted  .cbook.warn_deprecated() in contributing.rst

Avoid spurious deprecation warning in TextBox.

- Use add_gridspec to construct the gridspec and subgridspec to
  construct the subgridspec, saving an import.
- Use nested loops rather than itertools.product, which is nice but
  not really the point of the tutorial.
- Index gridspecs with two indices rather than a single flat index,
  again matching "standard" use.
- Set spine visiibility to the right value directly, rather than first
  toggling them all off and then a few on again.

Clarify docs of Rectangle

Fix minor doc typos.

Simplify subgridspec example/tutorial.

More missing refs fixes, and associated doc rewordings.

As a real case, incorrectly passing "axA" instead of "axesA" to
ConnectionPatch currently triggers a slightly confusing warning
regarding the non-existence of the "axa" property.

Deprecate case-insensitive properties.