To expand on my earlier comment about changing the module under test to make your testing easier, asyncio is one library that has lots of tests of different combinations of its C and Python implementations being used together.
As far as I know, it doesn't use import_fresh_module or similar hackery. Instead it exposes a private way of getting at the parallel Python implementation: https://github.com/python/cpython/blob/b7a78ca74ab539943ab11b5c4c9cfab7f5b7ff5a/Lib/asyncio/futures.py#L271-L272 This is the kind of thing I was suggesting. (It might require more setup than this in your case.) --Chris On Thu, May 7, 2020 at 11:33 AM Brett Cannon <br...@python.org> wrote: > Maybe an initialization/import side-effect bug which is triggered if the > module is imported twice? > _______________________________________________ > Python-Dev mailing list -- python-dev@python.org > To unsubscribe send an email to python-dev-le...@python.org > https://mail.python.org/mailman3/lists/python-dev.python.org/ > Message archived at > https://mail.python.org/archives/list/python-dev@python.org/message/25XFYLISP53DRZX2UI7ADYC3JC2V2NVG/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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