[issue40632] AttributeError: type object 'Callable' has no attribute '_abc_registry'

[Дилян Палаузов]

Дилян Палаузов <dilyan.palauzov at aegee.org> added the comment:

I used python 3.6, I exported all dependencies with `pip list`, then upgraded to python 3.8 and imported the exported dependencies.

Uninstalling the “typing” module has helped.

Do you mean, that python 3.8 includes the “typing” modules, so that it may not be re-installed over pip?

Why pip does not prevent the user from installing the “typing” modules on python 3.8?

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<https://bugs.python.org/issue40632>
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