[issue34680] asyncio event_loop fails when accessed from multiple threads

Andrew Svetlov added the comment: Please feel free to propose pull request for documentation tuning. -- ___ Python tracker ___ ___

[issue34680] asyncio event_loop fails when accessed from multiple threads

epiphyte added the comment: For additional context, this was encountered when porting an application from threading to asyncio, and at the time we were still running the ioloop in its own thread as opposed to the mainthread. We no longer do that :D Updating the documentation to clarify that

[issue34680] asyncio event_loop fails when accessed from multiple threads

Irit Katriel added the comment: Perhaps this is just a doc issue - state explicitly that a loop should be used only in one thread, and mention that this is checked in debug mode. -- ___ Python tracker _

[issue34680] asyncio event_loop fails when accessed from multiple threads

Andrew Svetlov added the comment: BaseEventLoop has _check_loop() method that is closed in debug mode only. UnixEventLoop doesn't call this method for unix-specific API. Adding the check to add_signal_handler()/remove_signal_handler() doesn't hurt, sure. But it doesn't help as the script is

[issue34680] asyncio event_loop fails when accessed from multiple threads

Irit Katriel added the comment: I think the script does violate the rule: t = threading.Thread(target=do_loop, args=(loop,)) and then do_loop closes the loop that was created in the main thread. -- ___ Python tracker

[issue34680] asyncio event_loop fails when accessed from multiple threads

Andrew Svetlov added the comment: All asyncio loop methods except `loop.call_soon_threadsafe()` should be done from the same thread as been used for the loop creation. Did you violate this rule? -- ___ Python tracker

[issue34680] asyncio event_loop fails when accessed from multiple threads

Change by Irit Katriel : -- title: asyncio event_loop close fails off main thread if signal handler registered -> asyncio event_loop fails when accessed from multiple threads ___ Python tracker _