module level dunder names not appearing in __init__.py

[meshula]

Bug Report

Python 3.10.2 | packaged by conda-forge | (main, Mar  8 2022, 16:02:23) [Clang 11.1.0 ] on darwin
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>>> import opentimelineio as otio
>>> otio.__version__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'opentimelineio' has no attribute '__version__'

This is a regression from 0.14, see here: #1224

Expected Behavior

Description of the expected behavior.

[JeanChristopheMorinPerso]

The regression is caused by #1238.

[meshula]

Per @JeanChristopheMorinPerso: #1238 is the culprit I think. build_py runs before build_ext.

edit: jinx :)

[meshula]

As part of a fix, let's add a test if possible, that the module level dunder names exist.

[JeanChristopheMorinPerso]

@meshula if you want you can assign this one to me. I can take care of it.

[meshula]

Thank you, that would be wonderful ~ I'm a bit slammed today!

[JeanChristopheMorinPerso]

Pull request created, but without tests. Testing that would either require to have PySide installed or we would have to parse the files which I feel is dirty...