[issue43035] FileNotFoundError in distutils\file_util.py copy_tree

[Christian Heimes]

Christian Heimes <lists at cheimes.de> added the comment:

It looks like you version number is confusing setuptools and distutils. Setuptools even warns you about the invalid version number:

UserWarning: The version specified ('2.3.0-pre-alpha-1+c8273a4c-1-preview') is an invalid version, this may not work as expected with newer versions of setuptools, pip, and PyPI. Please see PEP 440 for more details.

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<https://bugs.python.org/issue43035>
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