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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/wsgiref/handlers.pyi
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@@ -1,6 +1,6 @@
from abc import abstractmethod
from types import TracebackType
from typing import IO, Callable, MutableMapping, Optional
from typing import IO, Callable, MutableMapping
from .headers import Headers
from .types import ErrorStream, InputStream, StartResponse, WSGIApplication, WSGIEnvironment
@@ -8,7 +8,7 @@ from .util import FileWrapper
__all__ = ["BaseHandler", "SimpleHandler", "BaseCGIHandler", "CGIHandler", "IISCGIHandler", "read_environ"]
_exc_info = tuple[Optional[type[BaseException]], Optional[BaseException], Optional[TracebackType]]
_exc_info = tuple[type[BaseException] | None, BaseException | None, TracebackType | None]
def format_date_time(timestamp: float | None) -> str: ... # undocumented
def read_environ() -> dict[str, str]: ...