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Guard emeter accesses to avoid keyerrors (#304)

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Raise an exception to inform the caller that update() is needed
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Teemu R 2022-02-02 19:31:11 +01:00 committed by GitHub
parent 9ea83388ac
commit 700f3859c2
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1 changed files with 2 additions and 0 deletions
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kasa/smartdevice.py
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@ -219,6 +219,8 @@ class SmartDevice:
"""Raise an exception if there is no emeter.""" """Raise an exception if there is no emeter."""
if not self.has_emeter: if not self.has_emeter:
raise SmartDeviceException("Device has no emeter") raise SmartDeviceException("Device has no emeter")
if self.emeter_type not in self._last_update:
raise SmartDeviceException("update() required prior accessing emeter")
async def _query_helper( async def _query_helper(
self, target: str, cmd: str, arg: Optional[Dict] = None, child_ids=None self, target: str, cmd: str, arg: Optional[Dict] = None, child_ids=None