Integration stops updating after NameResolutionError

[christianglodt]

Describe the issue

Here's another case where the integration stops updating after an exception. The root cause seems to be a NameResolutionError, leading to ConnectionError ("Max retries exceeded"), leading to TooManyRequestsError, if I understand correctly.

What version of Home Assistant Core has the issue?

core-2025.9.4

What was the last working version of Home Assistant Core?

No response

What version of the Landroid Cloud integration do you have installed

6.0.0

What type of installation are you running?

Home Assistant Container

Which make and model is the mower used for this integration?

Worx WR167E

Diagnostics information (NOT log entries!)

not applicable

Relevant log entries

2025-09-28 05:44:00.763 ERROR (Thread-1228) [root] Uncaught thread exception
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/site-packages/urllib3/connection.py", line 198, in _new_conn
    sock = connection.create_connection(
        (self._dns_host, self.port),
    ...<2 lines>...
        socket_options=self.socket_options,
    )
  File "/usr/local/lib/python3.13/site-packages/urllib3/util/connection.py", line 60, in create_connection
    for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
               ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/socket.py", line 977, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
               ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
socket.gaierror: [Errno -3] Try again
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/site-packages/urllib3/connectionpool.py", line 787, in urlopen
    response = self._make_request(
        conn,
    ...<10 lines>...
        **response_kw,
    )
  File "/usr/local/lib/python3.13/site-packages/urllib3/connectionpool.py", line 488, in _make_request
    raise new_e
  File "/usr/local/lib/python3.13/site-packages/urllib3/connectionpool.py", line 464, in _make_request
    self._validate_conn(conn)
    ~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/usr/local/lib/python3.13/site-packages/urllib3/connectionpool.py", line 1093, in _validate_conn
    conn.connect()
    ~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/urllib3/connection.py", line 753, in connect
    self.sock = sock = self._new_conn()
                       ~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/urllib3/connection.py", line 205, in _new_conn
    raise NameResolutionError(self.host, self, e) from e
urllib3.exceptions.NameResolutionError: <urllib3.connection.HTTPSConnection object at 0x7c4de2d67d90>: Failed to resolve 'id.worx.com' ([Errno -3] Try again)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/site-packages/requests/adapters.py", line 667, in send
    resp = conn.urlopen(
        method=request.method,
    ...<9 lines>...
        chunked=chunked,
    )
  File "/usr/local/lib/python3.13/site-packages/urllib3/connectionpool.py", line 841, in urlopen
    retries = retries.increment(
        method, url, error=new_e, _pool=self, _stacktrace=sys.exc_info()[2]
    )
  File "/usr/local/lib/python3.13/site-packages/urllib3/util/retry.py", line 519, in increment
    raise MaxRetryError(_pool, url, reason) from reason  # type: ignore[arg-type]
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='id.worx.com', port=443): Max retries exceeded with url: /oauth/token (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x7c4de2d67d90>: Failed to resolve 'id.worx.com' ([Errno -3] Try again)"))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/site-packages/pyworxcloud/utils/requests.py", line 58, in POST
    req = requests.post(
        URL, REQUEST_BODY, headers=HEADER, timeout=60, cookies=None
    )  # 60 seconds timeout
  File "/usr/local/lib/python3.13/site-packages/requests/api.py", line 115, in post
    return request("post", url, data=data, json=json, **kwargs)
  File "/usr/local/lib/python3.13/site-packages/requests/api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
           ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/requests/sessions.py", line 589, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python3.13/site-packages/requests/sessions.py", line 703, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python3.13/site-packages/requests/adapters.py", line 700, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='id.worx.com', port=443): Max retries exceeded with url: /oauth/token (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x7c4de2d67d90>: Failed to resolve 'id.worx.com' ([Errno -3] Try again)"))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/threading.py", line 1043, in _bootstrap_inner
    self.run()
    ~~~~~~~~^^
  File "/usr/local/lib/python3.13/threading.py", line 1344, in run
    self.function(*self.args, **self.kwargs)
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pyworxcloud/__init__.py", line 375, in _fetch
    self._mowers = self._api.get_mowers()
                   ~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/pyworxcloud/api.py", line 121, in get_mowers
    self.check_token()
    ~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/pyworxcloud/api.py", line 111, in check_token
    self._update_token()
    ~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/pyworxcloud/api.py", line 80, in _update_token
    resp = POST(url, request_body, HEADERS())
  File "/usr/local/lib/python3.13/site-packages/pyworxcloud/utils/requests.py", line 87, in POST
    raise TooManyRequestsError()
pyworxcloud.exceptions.TooManyRequestsError

Additional information

No response

[christianglodt]

I've run into another such problem (ending with a TooManyRequestsError), this time due to the fact that I was rebooting my network switch after a firmware update, during which time the network was down.

In normal operation, it seems the integration performs an update every 10 minutes. I'm guessing (without looking at the code) that the next update is scheduled at the end of a successful update.

But when any unhandled exception occurs, it seems it does not schedule the next update.

Would it not be possible to wrap the update code in a try-finally clause, and to always schedule a next update, regardless of whether the current one succeeded or failed?

Sorry if this is naive and not the way it works, but I felt I had to ask.