[PyQt] Fwd: Poetry (and some versions of Pip) fail to install PyQt5-sip when installing PyQt5.11 from PyPi

jimbo1qaz jimbo1qaz at gmail.com
Thu Dec 20 23:33:03 GMT 2018

Did my first email attempt get rejected because I wasn't subscribed?

When installing PyQt5 5.11.3 via Poetry, I get an error when running Python
and importing QtCore or QtGui:

>>> from PyQt5 import QtCore
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'PyQt5.sip'

I also experienced the same error when running `pip install .` (executes
setup.py) on Appveyor. Maybe some versions of Pip/setuptools experience the
same issue.

The developer of Poetry diagnosed this issue:


> Basically the wheels for pyqt5 specify metadata in version 1.1 but their
> dependencies are declared using Requires-Dist which is only valid for the
> metadata specification 1.2+ this is why Poetry doesn't pick up pyqt5-sip.

Will this packaging issue be resolved at some point?
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