Detected blocking call to load_default_certs

[stu247]

Describe the bug
Upgraded HA to 2024.9.1 from 2024.8.* and saw the following message in log file:

2024-09-07 17:24:31.706 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to load_default_certs with args (<ssl.SSLContext object at 0x7fd42cfd0cd0>, <Purpose.SERVER_AUTH: _ASN1Object(nid=129, shortname='serverAuth', longname='TLS Web Server Authentication', oid='1.3.6.1.5.5.7.3.1')>) inside the event loop by custom integration 'lennoxs30' at custom_components/lennoxs30/__init__.py, line 430: self.api: s30api_async = s30api_async( (offender: /usr/local/lib/python3.12/ssl.py, line 713: context.load_default_certs(purpose)), please create a bug report at https://github.com/PeteRager/lennoxs30/issues
For developers, please see https://developers.home-assistant.io/docs/asyncio_blocking_operations/#load_default_certs
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/usr/src/homeassistant/homeassistant/__main__.py", line 223, in <module>
    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/setup.py", line 165, in async_setup_component
    result = await _async_setup_component(hass, domain, config)
  File "/usr/src/homeassistant/homeassistant/setup.py", line 461, in _async_setup_component
    await asyncio.gather(
  File "/usr/src/homeassistant/homeassistant/setup.py", line 463, in <genexpr>
    create_eager_task(
  File "/usr/src/homeassistant/homeassistant/util/async_.py", line 45, in create_eager_task
    return Task(coro, loop=loop, name=name, eager_start=True)
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 752, in async_setup_locked
    await self.async_setup(hass, integration=integration)
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 604, in async_setup
    result = await component.async_setup_entry(hass, self)
  File "/config/custom_components/lennoxs30/__init__.py", line 319, in async_setup_entry
    manager = Manager(
  File "/config/custom_components/lennoxs30/__init__.py", line 430, in __init__
    self.api: s30api_async = s30api_async(

To Reproduce
Steps to reproduce the behavior:
Upgrade HA to 2024.9.1

Expected behavior
No warning message.

Screenshots/Logs
See above.

Version

• Home Assistant: 2024.9.1
• This Integration: 2024.8.0

**Integration Configuration **

• Cloud or Local Connection: local
• Inverter or Sensor Diagnostics Enabled: no

Additional context
NA

[GaryOkie]

I'm getting this blocking call warning from not only this S30 integration but also the core Amcrest integration and the custom LG ThinQ integration. Reports are claiming this is not just a warning but it is causing a performance issue. I can't confirm there is any degradation.

Pete - might want to take a look at: (ollo69/ha-smartthinq-sensors#791)

[PeteRager]

This happens once at startup. As soon as we get back from vacation I'll be looking at it.

[PeteRager]

https://github.com/PeteRager/lennoxs30/releases/tag/2024.11.0