[New-bugs-announce] [issue36238] distutils complains "package init file 'xxx/__init__.py' not found (or not a regular file)" when using Cythonized __init__.pyx

[jt]

New submission from jt <jonas at thiem.email>:

distutils spits out a warning:

package init file 'xxx/__init__.py' not found (or not a regular file)

... when using Cythonized __init__.pyx instead. However, the installed package works absolutely fine, it can be imported & used perfectly, so this warning seems bogus.

I checked, and this warning is generated inside distutils/command/build_py.py in the build_py class in method check_package(). I suggest that this warning isn't generated in case a C extension is found for the __init__ module, checked in whatever way is appropriate at this stage (e.g. by seeing if there's an __init__.pyx)

----------
components: Distutils
messages: 337472
nosy: dstufft, eric.araujo, jt
priority: normal
severity: normal
status: open
title: distutils complains "package init file 'xxx/__init__.py' not found (or not a regular file)" when using Cythonized __init__.pyx
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36238>
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