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Write mypy plugin to type decorators #87

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sobolevn opened this issue Jun 13, 2019 · 1 comment

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sobolevn commented Jun 13, 2019 •

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Problem: https://returns.readthedocs.io/en/latest/pages/result.html#safe

from returns.result import safe

@safe
def function(param: int) -> int:
    return param

reveal_type(function)
# Actual => def (*Any, **Any) -> builtins.int
# Expected => def (int) -> builtins.int

We need to change the return type, while leaving the input types untouched.
Original issue: python/mypy#3157

sobolevn added the enhancement label

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sobolevn commented Jun 15, 2019

Closed with #88

sobolevn closed this as completed

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