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PEP 604: Remove some more uses of Union/Optional (#7515)

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The following patterns still break mypy:

1. `type[]` at top level fails
2. `tuple[T1, T2]` at top level fails (but `tuple[T1, ...]` is fine)
3. `T1 | Callable[..., T2 | T3]` fails, but only <=3.9

This PR cleans up usage of `Union` and `Optional` outside these patterns.
This commit is contained in:
Jelle Zijlstra
2022-03-19 08:23:00 -07:00
committed by GitHub
parent 1acc8f3bd6
commit b7d129f727
7 changed files with 24 additions and 23 deletions
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4
stdlib/traceback.pyi
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@@ -1,7 +1,7 @@
import sys
from _typeshed import Self, SupportsWrite
from types import FrameType, TracebackType
from typing import IO, Any, Generator, Iterable, Iterator, Mapping, Optional, overload
from typing import IO, Any, Generator, Iterable, Iterator, Mapping, overload
from typing_extensions import Literal
__all__ = [
@@ -26,7 +26,7 @@ __all__ = [
"walk_tb",
]
_PT = tuple[str, int, str, Optional[str]]
_PT = tuple[str, int, str, str | None]
def print_tb(tb: TracebackType | None, limit: int | None = ..., file: IO[str] | None = ...) -> None: ...