[issue32973] Importing the same extension module under multiple names breaks non-reinitialisable extension modules

[Stefan Behnel]

Stefan Behnel <stefan_ml at behnel.de> added the comment:

I think the best work-around for now is to implement a bit of PEP 489, including a module create function that always returns the same static module reference instead of creating a new one after the first call, and a module exec function that simply returns if the module has already been initialised. Keeping a global pointer to the module instance around should work. This is what the current Cython master branch does (also to make use of some of the nice features that PEP 489 brings).

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<https://bugs.python.org/issue32973>
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