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Description
Bug summary
As ofsetuptools v67.3.0 the use ofpkg_resources.declare_namespace inlib/mpl_toolkits/__init__.py raises aDeprecationWarning.
Code for reproduction
$mambacreate-ntestpython=3.10matplotlib-base-y$mambaactivatetest$exportPYTHONDEVMODE=1$python-c"import pkg_resources"
Actual outcome
/path/to/test/lib/python3.10/site-packages/pkg_resources/__init__.py:2804: DeprecationWarning: Deprecated call to `pkg_resources.declare_namespace('mpl_toolkits')`.Implementing implicit namespace packages (as specified in PEP 420) is preferred to `pkg_resources.declare_namespace`. See https://setuptools.pypa.io/en/latest/references/keywords.html#keyword-namespace-packages declare_namespace(pkg)Expected outcome
No output
Additional information
See also:
https://setuptools.pypa.io/en/latest/references/keywords.html#keyword-namespace-packages
https://packaging.python.org/en/latest/guides/packaging-namespace-packages/
https://peps.python.org/pep-0420/
Operating system
No response
Matplotlib Version
3.7.0
Matplotlib Backend
TkAgg
Python version
Python 3.10.9
Jupyter version
No response
Installation
conda