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Release notes: add ImageColor and ImageMode optimisations, and type hints

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This commit is contained in:
Hugo van Kemenade 2023-12-31 16:46:24 +02:00
parent 6c4b47dc46
commit 2825323e84
2 changed files with 36 additions and 13 deletions
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9
docs/PIL.rst
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@ -69,6 +69,15 @@ can be found here.
:undoc-members:
:show-inheritance:
:mod:`~PIL.ImageMode` Module
-----------------------------
.. automodule:: PIL.ImageMode
:members:
:member-order: bysource
:undoc-members:
:show-inheritance:
:mod:`~PIL.ImageTransform` Module
---------------------------------

40
docs/releasenotes/10.2.0.rst
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@ -1,14 +1,6 @@
10.2.0
------
Backwards Incompatible Changes
==============================
TODO
^^^^
TODO
Deprecations
============
@ -20,11 +12,6 @@ ImageFile.raise_oserror
error codes returned by a codec's ``decode()`` method, which ImageFile already does
automatically.
TODO
^^^^
TODO
API Changes
===========
@ -92,6 +79,21 @@ Support has been added to read the BC4U format of DDS images.
Support has also been added to read DX10 BC1 and BC4, whether UNORM or
TYPELESS.
Optimized ImageColor.getrgb and getcolor
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The color calculations of :py:attr:`~PIL.ImageColor.getrgb` and
:py:attr:`~PIL.ImageColor.getcolor` are now cached using
:py:func:`functools.lru_cache`. Cached calls of ``getrgb`` are 3.1 - 91.4 times
as fast and ``getcolor`` are 5.1 - 19.6 times as fast.
Optimized ImageMode.getmode
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The lookups made by :py:attr:`~PIL.ImageMode.getmode` are now cached using
:py:func:`functools.lru_cache` instead of a custom cache. Cached calls are 20%
faster.
Optimized ImageStat.Stat count and extrema
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -105,3 +107,15 @@ Encoder errors now report error detail as string
:py:exc:`OSError` exceptions from image encoders now include a textual description of
the error instead of a numeric error code.
Type hints
^^^^^^^^^^
Work has begun to add type annotations to Pillow, including:
* :py:class:`~PIL.ContainerIO`
* :py:class:`~PIL.FontFile` and subclasses
* :py:class:`~PIL.ImageChops`
* :py:class:`~PIL.ImageMode`
* :py:class:`~PIL.ImageSequence`
* :py:class:`~PIL.TarIO`