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core: In astream_events propagate cancellation reason to inner task #26727

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Sep 20, 2024
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4 changes: 4 additions & 0 deletions libs/core/langchain_core/tracers/event_stream.py
Original file line number Diff line number Diff line change
Expand Up @@ -994,6 +994,10 @@ async def consume_astream() -> None:
del event["data"]["input"]

yield event
except asyncio.CancelledError as exc:
# Cancel the task if it's still running
task.cancel(exc.args[0] if exc.args else None)
raise
finally:
# Cancel the task if it's still running
task.cancel()
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