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Infer return None in stubgen #4181

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czhang03 opened this issue Oct 31, 2017 · 1 comment
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Infer return None in stubgen #4181

czhang03 opened this issue Oct 31, 2017 · 1 comment
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@czhang03
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czhang03 commented Oct 31, 2017 •
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Is it possible that when a function don't have any return statement, mypy can infer that the return type is None?

Both Pycharm and Typescript has this feature.
@gvanrossum
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No, mypy's position is that the body must conform to the signature, not the other way around.

This would be a good feature for stubgen though.

@emmatyping emmatyping changed the title Infer return None Infer return None in stubgen Nov 4, 2017
@hoefling hoefling mentioned this issue Jan 13, 2018
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ilevkivskyi pushed a commit that referenced this issue Jan 13, 2018
@hoefling @ilevkivskyi
stubgen: infer None return type for functions without return statement (
6fce774 
#4467)

Fixes #4181.
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@gvanrossum @emmatyping @czhang03