python
Asyncio task was cancelled
asyncio\.CancelledError
Fixes
- 1.Handle CancelledError in try/except within the task
- 2.Use asyncio.shield() to protect critical sections from cancellation
- 3.Check task.cancelled() before accessing result
asynciotask-cancellation
Related Errors
python3 fixes
Asyncio event loop already running
RuntimeError: This event loop is already running
- •Use nest_asyncio.apply() to allow nested event loops
- •Use asyncio.run_coroutine_threadsafe() instead of asyncio.run()
python3 fixes
Coroutine never awaited
RuntimeWarning: coroutine '.*' was never awaited
- •Add 'await' before the coroutine call
- •Use asyncio.create_task() to schedule the coroutine
python3 fixes
Executor shutdown prevents new task scheduling
RuntimeError: cannot schedule new futures after shutdown
- •Ensure all tasks are submitted before calling executor.shutdown()
- •Use 'with' context manager for ThreadPoolExecutor