revealed type of 5 ** a is Any #8034

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matejcik opened this issue Nov 29, 2019 · 1 comment

matejcik commented Nov 29, 2019

The following code reproduces the problem both in 0.740 and current master. I run mypy with no options and no configuration.

a = 5
reveal_type(a)
reveal_type(5 ** 5)
reveal_type(5 ** a)

output:

% mypy mypy.py                                                                                                      
mypy.py:2: note: Revealed type is 'builtins.int'
mypy.py:3: note: Revealed type is 'builtins.int'
mypy.py:4: note: Revealed type is 'Any'

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Member

JelleZijlstra commented Nov 29, 2019

This is on purpose, see python/typeshed#1406 and python/typeshed#2662.

JelleZijlstra closed this as completed

vbraun mentioned this issue

__pow__(float, float) should be float | complex, not Any python/typeshed#12895

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