avoid setting _last_period to None

2022-02-14 21:16:52 +00:00 · 2022-02-14 21:16:52 +00:00 · bd3e2e2afe
parent 1d082d3ca6
commit bd3e2e2afe
1 changed files with 1 additions and 1 deletions
--- a/homeassistant/components/utility_meter/sensor.py
+++ b/homeassistant/components/utility_meter/sensor.py
@ -283,7 +283,7 @@ class UtilityMeterSensor(RestoreEntity, SensorEntity):
            return
        _LOGGER.debug("Reset utility meter <%s>", self.entity_id)
        self._last_reset = dt_util.utcnow()
-        self._last_period = str(self._state)
+        self._last_period = str(self._state) if self._state else 0
        self._state = 0
        self.async_write_ha_state()