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Issue 46771 by Tinche · Pull Request #31415 · python/cpython · GitHub

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Issue 46771 #31415

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Tinche wants to merge 2 commits into from
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Issue 46771 #31415

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fbba91c
Fix CancelScope repr
Tinche Feb 18, 2022
18e4268
CancelScope to dataclass
Tinche Feb 18, 2022
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20 changes: 8 additions & 12 deletions Lib/asyncio/timeouts.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
import contextlib
import enum

from dataclasses import dataclass
from types import TracebackType
from typing import final, Any, Iterator, Optional, Type

Expand All @@ -27,18 +28,13 @@ class _State(enum.Enum):


@final
@dataclass(slots=True)
class CancelScope:
__slots__ = ("_deadline", "_loop", "_state", "_task", "_timeout_handler")

def __init__(
self, deadline: Optional[float], loop: events.AbstractEventLoop
) -> None:
self._loop = loop
self._state = _State.CREATED

self._timeout_handler: Optional[events.TimerHandle] = None
self._task: Optional[tasks.Task[Any]] = None
self._deadline = deadline
_deadline: float | None
_loop: events.AbstractEventLoop
_state: _State = _State.CREATED
_task: tasks.Task[Any] | None = None
_timeout_handler: events.TimerHandle | None = None

@property
def deadline(self) -> Optional[float]:
Expand All @@ -63,7 +59,7 @@ def cancelling(self) -> bool:
def __repr__(self) -> str:
info = [str(self._state)]
if self._state == _State.ENTERED and self._deadline is not None:
info.append("deadline={self._deadline}")
info.append(f"deadline={self._deadline}")
cls_name = self.__class__.__name__
return f"<{cls_name} at {id(self):#x}, {' '.join(info)}>"

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