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Make TaskGroup.__aexit__ return Literal[False] #472

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Make TaskGroup.__aexit__ return Literal[False] #472

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11601f1
Make TaskGroup.__aexit__ return Literal[False]
eitan-protego Feb 17, 2026
95bc591
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pre-commit-ci-lite[bot] Feb 17, 2026
cf97758
Add type: ignore
eitan-protego Feb 17, 2026
9844fb3
Merge branch 'main' into main
eitan-protego Feb 22, 2026
4486bbf
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pre-commit-ci-lite[bot] Feb 22, 2026
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12 changes: 12 additions & 0 deletions asyncer/_main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,9 +2,11 @@
import sys
from collections.abc import Awaitable, Callable, Coroutine
from importlib import import_module
from types import TracebackType
from typing import (
Any,
Generic,
Literal,
ParamSpec,
TypeVar,
)
Expand Down Expand Up @@ -169,6 +171,16 @@ async def __aenter__(self) -> "TaskGroup": # pragma: nocover
"""Enter the task group context and allow starting new tasks."""
return await super().__aenter__() # type: ignore

# This is only for the return type annotation, but it won't really be called
async def __aexit__(
self,
exc_type: type[BaseException] | None,
exc_value: BaseException | None,
exc_tb: TracebackType | None,
) -> Literal[False]: # pragma: nocover
"""Exit the task group context once all tasks are completed."""
return await super().__aexit__(exc_type, exc_value, exc_tb) # type: ignore


def create_task_group() -> "TaskGroup":
"""
Expand Down