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Handle marker attrs that may not exist (#27519)

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marker-high-levels and marker-low-levels may not exist in printer
attributes returned by CUPS, so we'll use .get() to avoid this and
default to None:
KeyError: 'marker-high-levels'

Fixes #27518
This commit is contained in:
Brett T. Warden 2019-10-15 02:53:13 -07:00 committed by Fabian Affolter
parent 5b410ff3a5
commit 57b8d1889a
1 changed files with 2 additions and 2 deletions
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4
homeassistant/components/cups/sensor.py
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@ -276,11 +276,11 @@ class MarkerSensor(Entity):
if self._attributes is None:
return None
high_level = self._attributes[self._printer]["marker-high-levels"]
high_level = self._attributes[self._printer].get("marker-high-levels")
if isinstance(high_level, list):
high_level = high_level[self._index]
low_level = self._attributes[self._printer]["marker-low-levels"]
low_level = self._attributes[self._printer].get("marker-low-levels")
if isinstance(low_level, list):
low_level = low_level[self._index]