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Mapping tuple over a list of lists is being considered an error #1178

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ninjawithaneedle opened this issue Apr 19, 2017 · 1 comment
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Mapping tuple over a list of lists is being considered an error #1178

ninjawithaneedle opened this issue Apr 19, 2017 · 1 comment

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@ninjawithaneedle
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map(tuple, [ [2, 3] ]) throws

error: Argument 1 to "map" has incompatible type Tuple[_T_co, ...]; expected Callable[[List[int]], Tuple[_T_co, ...]]

However, this is valid python code.
@JukkaL JukkaL added stubs: false positive Type checkers report false errors priority-normal and removed stubs: false positive Type checkers report false errors priority-normal labels Apr 19, 2017
@JukkaL JukkaL mentioned this issue Apr 19, 2017
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@JukkaL
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JukkaL commented Apr 19, 2017

This looks like a bug in mypy. Filed it as python/mypy#3193.

@JukkaL JukkaL closed this as completed Apr 19, 2017
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@JukkaL @ninjawithaneedle