Pyright not handles copying TypedDict

[kumaraditya303]

See this code:

# pyright: strict
from typing import TypedDict


class A(TypedDict):
    name: str


a = A(name="foo")
b = {**a} # Make a copy to not mutate a
reveal_type(b)

Revealed Type should be A not dict[str, object]. Can support for copying be added ?

[erictraut]

This is the expected behavior. It's consistent with other type checkers. See python/mypy#2738 for a related discussion.

You can use b = A(**a) if you would like to construct a new TypedDict.

[kumaraditya303]

The issue is that at runtime A cannot be imported so b = A(**a) is not possible. Current workaround a.copy()