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mypy-play/main.py

Created September 19, 2021 03:07
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main.py
from typing import Generic, TypeVar, Mapping
T = TypeVar("T")
T2 = TypeVar("T2")
class A(dict[T, T2]):
...
def foo(**i: float) -> None:
...
a: A[str, str]
d = {"a": "b"}
foo(**a)
foo(**d) # error: Argument 1 to "foo" has incompatible type "**Dict[str, str]"; expected "float"
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