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[Bug]: DeprecationWarning triggered from using distutils #21643

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johnthagen opened this issue Nov 15, 2021 · 3 comments
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[Bug]: DeprecationWarning triggered from using distutils #21643

johnthagen opened this issue Nov 15, 2021 · 3 comments

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@johnthagen
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Bug summary

distutils is deprecated in Python 3.10: https://docs.python.org/3/library/distutils.html

Matplotlib (as of 3.4.3) currently uses distutils, so users are met with DeprecationWarnings when using on Python 3.10.

    from matplotlib import pyplot 
.tox/py/lib/python3.10/site-packages/matplotlib/__init__.py:88: in <module>
    from distutils.version import LooseVersion
/usr/local/lib/python3.10/distutils/__init__.py:19: in <module>
    warnings.warn(_DEPRECATION_MESSAGE,
E   DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use setuptools or check PEP 632 for potential alternatives

Code for reproduction

from matplotlib import pyplot

Actual outcome

DeprecationWarning raised per summary.

Expected outcome

No DeprecationWarnings raised

Additional information

No response

Operating system

macOS

Matplotlib Version

3.4.3

Matplotlib Backend

No response

Python version

Python 3.10.0

Jupyter version

No response

Installation

pip
@dstansby
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Thanks for reporting. I think this is a duplicate of #21057, which has been fixed.

@johnthagen
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Yes, it does appear that this particular import is gone in main:

matplotlib/lib/matplotlib/__init__.py

Lines 84 to 90 in 993c1bc

import atexit
from collections import namedtuple
from collections.abc import MutableMapping
import contextlib
import functools
import importlib
import inspect

@johnthagen
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johnthagen commented Nov 15, 2021 •
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Fixed in #20437 (5 months ago?)

@Matthew1471 Matthew1471 mentioned this issue Dec 3, 2023
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@dstansby @johnthagen