[Bug] Error updating data: 'NoneType' object has no attribute 'astimezone'

[RonnyAL]

Short summary 📝

Integration suddenly stopped working altogether, due to a NoneType object

Detailed description 📋

Discovered that the integration no longer provides any sensors. Tried updating Home Assistant, which made no difference. I'm guessing a previous update of Home Assistant broke this integration. It seems like event_time is no longer getting fetched, and becomes a NoneType object which breaks the integration.

Version 📌

0.2.2

Environment 🌐

Installation method	Home Assistant OS
Core	2025.12.5
Supervisor	2025.12.3
Operating System	16.3
Frontend	20251203.3

Logs and screenshots 📂

Traceback (most recent call last):
  File "/config/custom_components/lunar_phase/coordinator.py", line 38, in _async_update_data
    attributes = await self.hass.async_add_executor_job(
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        self.moon_calc.get_moon_attributes
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/local/lib/python3.13/concurrent/futures/thread.py", line 59, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/config/custom_components/lunar_phase/moon.py", line 169, in get_moon_attributes
    STATE_ATTR_NEXT_RISE: self.get_event_time("rise"),
                          ~~~~~~~~~~~~~~~~~~~^^^^^^^^
  File "/config/custom_components/lunar_phase/moon.py", line 111, in get_event_time
    return event_time.astimezone(config_timezone)
           ^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'astimezone'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 419, in _async_refresh
    self.data = await self._async_update_data()
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/config/custom_components/lunar_phase/coordinator.py", line 47, in _async_update_data
    raise UpdateFailed(f"Error updating data: {err}") from err
homeassistant.helpers.update_coordinator.UpdateFailed: Error updating data: 'NoneType' object has no attribute 'astimezone'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/config/custom_components/lunar_phase/__init__.py", line 43, in async_setup_entry
    await coordinator.async_config_entry_first_refresh()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 318, in async_config_entry_first_refresh
    await self._async_config_entry_first_refresh()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 352, in _async_config_entry_first_refresh
    raise ex
homeassistant.exceptions.ConfigEntryNotReady: Error updating data: 'NoneType' object has no attribute 'astimezone'

[RonnyAL]

After some further testing, I discovered that the integration still works if I provide a city like London. The city I live in no longer works if only specified by name. It now prompts me for details (like region, time zone, coordinates). But re-adding the entry, specifying details (timezone Europe/Oslo, exact coordinates) apparantly results in an invalid configuration.

So whatever the source of location data is, it seemingly stopped providing my location in a compatible manner. I assumed this would be fixable by providing coordinates, but that's not the case.