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MNT: Deprecate matplotlib.image.thumbnail #31470

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Merged
jklymak merged 1 commit into from
Apr 8, 2026
Merged

MNT: Deprecate matplotlib.image.thumbnail #31470

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6 changes: 6 additions & 0 deletions doc/api/next_api_changes/deprecations/31468-ES.rst
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@@ -0,0 +1,6 @@
``image.thumbnail``
~~~~~~~~~~~~~~~~~~~

... is deprecated without replacement. Use :external:py:`Pillow's thumbnail
method <PIL.Image.Image.thumbnail>` instead. See also the `Pillow tutorial
<https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#create-jpeg-thumbnails>`_.
32 changes: 0 additions & 32 deletions galleries/examples/misc/image_thumbnail_sgskip.py
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4 changes: 3 additions & 1 deletion lib/matplotlib/image.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1787,12 +1787,14 @@ def _pil_png_to_float_array(pil_png):
raise ValueError(f"Unknown PIL rawmode: {rawmode}")


@_api.deprecated('3.11', alternative="Pillow's `PIL.Image.Image.thumbnail`")
def thumbnail(infile, thumbfile, scale=0.1, interpolation='bilinear',
preview=False):
"""
Make a thumbnail of image in *infile* with output filename *thumbfile*.

See :doc:`/gallery/misc/image_thumbnail_sgskip`.
See `Pillow for a replacement
<https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#create-jpeg-thumbnails>`_.

Parameters
----------
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