python
No event loop in non-main thread
RuntimeError: There is no current event loop in thread
Fixes
- 1.Create new loop: loop = asyncio.new_event_loop(); asyncio.set_event_loop(loop)
- 2.Use asyncio.run() which creates and sets a loop automatically
- 3.Pass the main loop to the thread and use run_coroutine_threadsafe()
asynciothreading
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
Asyncio task was cancelled
asyncio\.CancelledError
- •Handle CancelledError in try/except within the task
- •Use asyncio.shield() to protect critical sections from cancellation