Detected blocking call to open inside the event loop (HA 2024.6)

[hmmbob]

Did you read the instructions?

• I have read the README, including the known-limitations section.

The problem

Got a lot of warnings on 2024.6 beta (600+ lines):

Detected blocking call to open inside the event loop by custom integration 'knmi' at custom_components/knmi/coordinator.py, line 90: timezone = pytz.timezone(API_TIMEZONE) (offender: /usr/local/lib/python3.12/site-packages/pytz/init.py, line 108: return open(filename, 'rb')), please create a bug report at https://github.com/golles/ha-knmi/issues

This might be related:
https://developers.home-assistant.io/blog/2024/05/19/fix_zoneinfo_blocking_io/

Integration version

2.1.0

Home Assistant version

core-2024.6.0b4

Python version

3.12.2

Home Assistant log

No response

Diagnostics

No response

Additional information

No response

[hmmbob]

beta 5 geeft nog meer info in de foutmelding:

Detected blocking call to open inside the event loop by custom integration 'knmi' at custom_components/knmi/coordinator.py, line 90: timezone = pytz.timezone(API_TIMEZONE) (offender: /usr/local/lib/python3.12/site-packages/pytz/init.py, line 108: return open(filename, 'rb')), please create a bug report at https://github.com/golles/ha-knmi/issues 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 188, in run return loop.run_until_complete(setup_and_run_hass(runtime_config)) File "/usr/local/lib/python3.12/asyncio/base_events.py", line 672, in run_until_complete self.run_forever() File "/usr/local/lib/python3.12/asyncio/base_events.py", line 639, in run_forever self._run_once() File "/usr/local/lib/python3.12/asyncio/base_events.py", line 1988, 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/config_entries.py", line 742, in async_setup_locked await self.async_setup(hass, integration=integration) File "/usr/src/homeassistant/homeassistant/config_entries.py", line 594, in async_setup result = await component.async_setup_entry(hass, self) File "/config/custom_components/knmi/init.py", line 75, in async_setup_entry await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS) File "/usr/src/homeassistant/homeassistant/config_entries.py", line 2032, in async_forward_entry_setups await asyncio.gather( File "/usr/src/homeassistant/homeassistant/config_entries.py", line 2034, in create_eager_task( File "/usr/src/homeassistant/homeassistant/util/async.py", line 37, in create_eager_task return Task(coro, loop=loop, name=name, eager_start=True) File "/usr/src/homeassistant/homeassistant/config_entries.py", line 2081, in _async_forward_entry_setup await entry.async_setup(self.hass, integration=integration) File "/usr/src/homeassistant/homeassistant/config_entries.py", line 594, in async_setup result = await component.async_setup_entry(hass, self) File "/usr/src/homeassistant/homeassistant/components/binary_sensor/init.py", line 234, in async_setup_entry return await component.async_setup_entry(entry) File "/usr/src/homeassistant/homeassistant/helpers/entity_component.py", line 196, in async_setup_entry return await self._platforms[key].async_setup_entry(config_entry) File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 333, in async_setup_entry return await self._async_setup_platform(async_create_setup_awaitable) File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 363, in async_setup_platform awaitable = create_eager_task(awaitable, loop=hass.loop) File "/usr/src/homeassistant/homeassistant/util/async.py", line 37, in create_eager_task return Task(coro, loop=loop, name=name, eager_start=True) File "/config/custom_components/knmi/binary_sensor.py", line 74, in async_setup_entry async_add_entities(entities) File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 515, in async_schedule_add_entities_for_entry task = self.config_entry.async_create_task( File "/usr/src/homeassistant/homeassistant/config_entries.py", line 1134, in async_create_task task = hass.async_create_task_internal( File "/usr/src/homeassistant/homeassistant/core.py", line 828, in async_create_task_internal task = create_eager_task(target, name=name, loop=self.loop) File "/usr/src/homeassistant/homeassistant/util/async.py", line 37, in create_eager_task return Task(coro, loop=loop, name=name, eager_start=True) File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 649, in async_add_entities await add_func(coros, entities, timeout) File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 600, in _async_add_entities await coro File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 914, in _async_add_entity await entity.add_to_platform_finish() File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1355, in add_to_platform_finish self.async_write_ha_state() File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1000, in async_write_ha_state self._async_write_ha_state() File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1126, in _async_write_ha_state state, attr, capabilities, shadowed_attr = self.__async_calculate_state() File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1065, in __async_calculate_state if extra_state_attributes := self.extra_state_attributes: File "/config/custom_components/knmi/binary_sensor.py", line 108, in extra_state_attributes return self.entity_description.attr_fn(self.coordinator) File "/config/custom_components/knmi/binary_sensor.py", line 33, in "timestamp": coordinator.get_value_datetime( File "/config/custom_components/knmi/coordinator.py", line 90, in get_value_datetime timezone = pytz.timezone(API_TIMEZONE)

[golles]

I saw the blog post when it was published, but I thought it wouldn't affect this component since it is using pytz.timezone which wasn't mentioned. So thank you for reporting beta feedback!

The linked PR has a fix on top of 2024.6.0b6

[golles]

Made a pre-release 2.2.0-b1 containing the fix

[golles]

2.2.0 has been released containing a fix for this issue
https://github.com/golles/ha-knmi/releases/tag/2.2.0