Detected blocking call

[demey]

Home Assistant
Core 2024.7.3
Supervisor 2024.06.2
Operating System 12.4

WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to open with args ('/root/.netrc',) inside the event loop by custom integration 'edge_tts' at custom_components/edge_tts/tts.py, line 408: async for chunk in tts.stream(): (offender: /usr/local/lib/python3.12/netrc.py, line 74: with open(file, encoding="utf-8") as fp:), please create a bug report at https://github.com/hasscc/hass-edge-tts/issues

For developers, please see https://developers.home-assistant.io/docs/asyncio_blocking_operations/#open

Traceback (most recent call last):
File "", line 198, in _run_module_as_main
File "", line 88, in _run_code
File "/usr/src/homeassistant/homeassistant/main.py", line 223, in
sys.exit(main())
File "/usr/src/homeassistant/homeassistant/main.py", line 209, in main
exit_code = runner.run(runtime_conf)
File "/usr/src/homeassistant/homeassistant/runner.py", line 190, in run
return loop.run_until_complete(setup_and_run_hass(runtime_config))
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 674, in run_until_complete
self.run_forever()
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 641, in run_forever
self._run_once()
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 1990, in _run_once
handle._run()
File "/usr/local/lib/python3.12/asyncio/events.py", line 88, in _run
self._context.run(self._callback, *self._args)
File "/usr/src/homeassistant/homeassistant/components/tts/init.py", line 727, in get_tts_data
extension, data = await engine_instance.async_get_tts_audio(
File "/config/custom_components/edge_tts/tts.py", line 408, in async_get_tts_audio
async for chunk in tts.stream():

[demey]

Issue still exists.
HA version 2024.11.1

`2024-11-10 22:50:34.006 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to load_verify_locations with args (<ssl.SSLContext object at 0x7f63cb67a350>, '/usr/local/lib/python3.12/site-packages/certifi/cacert.pem', None, None) inside the event loop by custom integration 'edge_tts' at custom_components/edge_tts/tts.py, line 408: async for chunk in tts.stream(): (offender: /usr/local/lib/python3.12/ssl.py, line 708: context.load_verify_locations(cafile, capath, cadata)), please create a bug report at https://github.com/hasscc/hass-edge-tts/issues
For developers, please see https://developers.home-assistant.io/docs/asyncio_blocking_operations/#load_verify_locations
Traceback (most recent call last):
File "", line 198, in _run_module_as_main
File "", line 88, in _run_code
File "/usr/src/homeassistant/homeassistant/main.py", line 223, in
sys.exit(main())
File "/usr/src/homeassistant/homeassistant/main.py", line 209, in main
exit_code = runner.run(runtime_conf)
File "/usr/src/homeassistant/homeassistant/runner.py", line 189, in run
return loop.run_until_complete(setup_and_run_hass(runtime_config))
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 674, in run_until_complete
self.run_forever()
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 641, in run_forever
self._run_once()
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 1990, in _run_once
handle._run()
File "/usr/local/lib/python3.12/asyncio/events.py", line 88, in _run
self._context.run(self._callback, *self._args)
File "/usr/src/homeassistant/homeassistant/components/tts/init.py", line 767, in get_tts_data
extension, data = await engine_instance.async_get_tts_audio(
File "/config/custom_components/edge_tts/tts.py", line 408, in async_get_tts_audio
async for chunk in tts.stream():

2024-11-10 22:50:34.014 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to open with args ('/root/.netrc',) inside the event loop by custom integration 'edge_tts' at custom_components/edge_tts/tts.py, line 408: async for chunk in tts.stream(): (offender: /usr/local/lib/python3.12/netrc.py, line 74: with open(file, encoding="utf-8") as fp:), please create a bug report at https://github.com/hasscc/hass-edge-tts/issues
For developers, please see https://developers.home-assistant.io/docs/asyncio_blocking_operations/#open
Traceback (most recent call last):
File "", line 198, in _run_module_as_main
File "", line 88, in _run_code
File "/usr/src/homeassistant/homeassistant/main.py", line 223, in
sys.exit(main())
File "/usr/src/homeassistant/homeassistant/main.py", line 209, in main
exit_code = runner.run(runtime_conf)
File "/usr/src/homeassistant/homeassistant/runner.py", line 189, in run
return loop.run_until_complete(setup_and_run_hass(runtime_config))
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 674, in run_until_complete
self.run_forever()
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 641, in run_forever
self._run_once()
File "/usr/local/lib/python3.12/asyncio/base_events.py", line 1990, in _run_once
handle._run()
File "/usr/local/lib/python3.12/asyncio/events.py", line 88, in _run
self._context.run(self._callback, *self._args)
File "/usr/src/homeassistant/homeassistant/components/tts/init.py", line 767, in get_tts_data
extension, data = await engine_instance.async_get_tts_audio(
File "/config/custom_components/edge_tts/tts.py", line 408, in async_get_tts_audio
async for chunk in tts.stream():`

[demey]

I have changed line 408 in /config/custom_components/edge_tts/tts.py
from async for chunk in tts.stream(): to for chunk in tts.stream_sync(): and listed WARNINGs disappeared.
Integration works as expected.

[rany2]

I think the detection is a false positive. At least I can't find any blocking code for edge-tts that can cause this.

The reason the sync varient doesn't trigger it is likely because it starts a new event loop in a new thread which is likely not monitored by Home Assistant.