Allow importing NoReturn from typing#3041
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| def f() -> NoReturn: | ||
| no_return() | ||
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| x = 0 # type: NoReturn # E: Incompatible types in assignment (expression has type "int", variable has type NoReturn) |
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Does x = ... # type: NoReturn also produce an error?
Also, this error should happen even without --warn-no-return, so maybe it should be a separate test case.
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You are right, --warn-no-return is now on by default, so that I just removed it.
x: NoReturn doesn't produce an error (and probably shouldn't) so I just use x: NoReturn = 0
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I think it is completely safe to merge this now (both |
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NoReturnwas added to PEP 484 recently, and will be added totypingright after Python 3.6.1 release.This PR allows to import
NoReturnfromtypingin addition tomypy_extensions.