Fixed stubgen parsing generics from C extensions #8939
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JukkaL
reviewed
Jun 8, 2020
| r'(^|[\[, ]+)' + re.escape(module.__name__ + '.'), | ||
| r'\1', | ||
| typ, | ||
| ) |
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It would be nice to have some unit tests for the new functionality, since this logic is non-trivial. You can add them to mypy/test/teststubgen.py.
(Maybe also modify this so that the module name is passed instead of a module object.)
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Ah I couldn't find the tests for stubgen. I'll get those added. Thanks for the review!
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Is there anything else that I can do to help progress this pull request? |
JukkaL
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Aug 14, 2020
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pybind11 is capable of producing type signatures that use generics (for example https://github.com/pybind/pybind11/blob/4e3d9fea74ed50a042d98f68fa35a3133482289b/include/pybind11/stl.h#L140). A user may also opt to write a signature in the docstring that uses generics.
Currently when stubgen parses one of these generics, it attempts to import a part of it. For example if a docstring had
my_func(str, int) -> List[mypackage.module_being_parsed.MyClass], the resulting stub file tries to importList[mypackage.module_being_parsed.This change fixes this behaviour by breaking the found type down into the multiple types around
[],characters, adding any imports from those types that are needed, and then stripping out the name of the module being parsed.