`AssertionError` related to `async_upnp_client.ssdp_listener`

[bieniu]

The problem

Sometimes AssertionError related to async_upnp_client.ssdp_listener appears in my log.

What version of Home Assistant Core has the issue?

core-2022.11.0

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant Supervised

Integration causing the issue

ssdp

Link to integration documentation on our website

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

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

2022-11-03 04:14:29.485 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/async_upnp_client/search.py", line 96, in _async_on_data
await self.async_callback(headers)
File "/usr/local/lib/python3.10/site-packages/async_upnp_client/ssdp_listener.py", line 551, in _on_search
) = self._device_tracker.see_search(headers)
File "/usr/local/lib/python3.10/site-packages/async_upnp_client/ssdp_listener.py", line 302, in see_search
ssdp_device, new_location = self._see_device(headers)
File "/usr/local/lib/python3.10/site-packages/async_upnp_client/ssdp_listener.py", line 410, in _see_device
new_location = location_changed(ssdp_device, headers)
File "/usr/local/lib/python3.10/site-packages/async_upnp_client/ssdp_listener.py", line 243, in location_changed
new_ip_version = ip_version_from_location(new_location)
File "/usr/local/lib/python3.10/site-packages/async_upnp_client/ssdp_listener.py", line 223, in ip_version_from_location
assert hostname
AssertionError

### Additional information

_No response_

[home-assistant]

ssdp documentation
ssdp source

[StevenLooman]

I've got a fix for this one and will create a PR for this soon. I want to try to include a fix for #81459 as well, if possible, but that requires a bit more debugging perhaps. So please hold on.

[bieniu]

@StevenLooman Great, thanks for your response.

[StevenLooman]

Created #81611 to fix this issue. Hopefully it'll be included with version 2022.11.1.

[StevenLooman]

I am curious though what the actual hostname is which causes the error. Can you enable logging and see if you can find the offending hostname?

You can enable logging by adding this to your configuration.yaml:

logger:
  default: warning
  logs:
    homeassistant.components.ssdp: debug
    async_upnp_client.ssdp: debug
    async_upnp_client.ssdp_listener: debug
    async_upnp_client.traffic: error

This will cause many messages, but hopefully you can find the log lines which occur "just" before the error. If so, can you post these here or mail those to me?