Custom States Cause Error

I have been trying to determine if. a custom state exists in a GhostXML device (real type). If there is rain there will be a Rain state. If there is no rain that state will not exist. I thought I could use hasattr, but it always results in the "else" instructions even if the custom state is there. Any thoughts about how to determine if a custom state exists for a GhostXML device?

Code: Select all

dev = indigo.devices[123456789]  # GhostXML device
state_1 = dev.states['list_0_rain_3h']
Attr_1 = 'list_0_rain_3h'

if hasattr(dev, Attr_1):
   indigo.server.log("state = %s" % (dev. list_0_rain_3h))
else:
   state_1 = 0
   indigo.server.log("hassattr1 = attr not found")


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state_1 = dev.states.get('list_0_rain_3h', None)
if state_1:
    # yes the state is there


Like a charm. Thank you!

Yes, that's the "Ghost" part in action. Only data provided by the most recent API call will have states created. Joe's recommendation is (of course) the best way to handle this situation. I might add that if you want to presume that the lack of the state's existence means that there is zero rain predicted, you can modify his code thusly:

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state_1 = dev.states.get('list_0_rain_3h', 0)