Detected blocking call to open inside the event loop by integration 'environment_canada'

[tdejneka]

The problem

Received warning message on startup indicating detection of a blocking call in the event loop by the Environment Canada integration.

Message suggested to report it as an Issue.

It looks like it occurs when getting radar weather data.

What version of Home Assistant Core has the issue?

core-2024.6.0

What was the last working version of Home Assistant Core?

core-2024.5.4

What type of installation are you running?

Home Assistant Supervised

Integration causing the issue

Environment Canada

Link to integration documentation on our website

https://www.home-assistant.io/integrations/environment_canada/

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

Detected blocking call to open inside the event loop by integration 'environment_canada' at homeassistant/components/environment_canada/__init__.py,
 line 49: radar_data = ECRadar(coordinates=(lat, lon))
 (offender: /usr/local/lib/python3.12/site-packages/PIL/Image.py, line 3277: fp = builtins.open(filename, "rb")),
 please create a bug report at https://github.com/home-assistant/core/issues?q=is%3Aopen+is%3Aissue+label%3A%22integration%3A+environment_canada%22

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 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 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 "/usr/src/homeassistant/homeassistant/components/environment_canada/__init__.py", 
 line 49, in async_setup_entry radar_data = ECRadar(coordinates=(lat, lon))

Additional information

No response

[home-assistant]

Hey there @gwww, @michaeldavie, mind taking a look at this issue as it has been labeled with an integration (environment_canada) you are listed as a code owner for? Thanks!

Code owner commands

Code owners of environment_canada can trigger bot actions by commenting:

• @home-assistant close Closes the issue.
• @home-assistant rename Awesome new title Renames the issue.
• @home-assistant reopen Reopen the issue.
• @home-assistant unassign environment_canada Removes the current integration label and assignees on the issue, add the integration domain after the command.
• @home-assistant add-label needs-more-information Add a label (needs-more-information, problem in dependency, problem in custom component) to the issue.
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environment_canada documentation
environment_canada source
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[bdraco]

That explains some of the older loop blocking issues we couldn't find in this integration. Thanks for reporting

[lululombard]

I'm encountering the same issue, 2024.06.0 broke the integration.

[6of6]

I have...

2024-06-13 21:09:12.121 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to open inside the event loop by integration 'environment_canada' at homeassistant/components/environment_canada/init.py, line 49: radar_data = ECRadar(coordinates=(lat, lon)) (offender: /usr/local/lib/python3.12/site-packages/PIL/ImageFont.py, line 85: with open(filename, "rb") as fp:), please create a bug report at https://github.com/home-assistant/core/issues?q=is%3Aopen+is%3Aissue+label%3A%22integration%3A+environment_canada%22

...in my log.

I'm not the sharpest tool in the drawer, but it seems relevant. Maybe it helps.

[gwww]

Changes submitted to supporting library here: michaeldavie/env_canada#90. PR for HA coming after linked PR merged.

[michaeldavie]

Changes made in https://github.com/michaeldavie/env_canada/releases/tag/v0.7.0

[bdraco]

closing as fixed via #120035 , target 2024.6.4