OneWireError exception

[spoz]

Hi all,
I'm using an ESP8266 with a DS18B20 temperature sensor and the OneWire library. I'm trying to handle an exception in the case where the sensor becomes disconnected during runtime.

Without any error handling if I disconnect the sensor and run:

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sensor.convert_temp()

then I see:

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>>> sensor.convert_temp()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "ds18x20.py", line 19, in convert_temp
  File "onewire.py", line 22, in reset
OneWireError:

If I try to catch the exception, my code looks like:

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try:
	sensor.convert_temp()
except OneWireError:
	print("Error")	

Then I get:

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Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
NameError: name 'OneWireError' isn't defined

Looking in the onewire library, the OneWireError exception class is just a "pass". Is this the problem? What is the correct way to handle this error?

[kevinkk525]

you have to catch "onewire.OneWireError" if you import onewire at the top of the module.

[spoz]

D'oh. Thanks so much for the reply.