Fix upnp raw sensor state formatting when None (#30444)

2020-01-08 23:51:30 -06:00 · 2020-01-08 23:51:30 -06:00 · 260596d11b
parent fe0b537291
commit 260596d11b
1 changed files with 3 additions and 0 deletions
--- a/homeassistant/components/upnp/sensor.py
+++ b/homeassistant/components/upnp/sensor.py
@ -126,6 +126,9 @@ class RawUPnPIGDSensor(UpnpSensor):
    @property
    def state(self) -> str:
        """Return the state of the device."""
+        if self._state is None:
+            return None
+
        return format(self._state, "d")

    @property