Catch KeyError in Python

Question

If I run the code:

connection = manager.connect(\"I2Cx\")

The program crashes and reports a KeyError because I2Cx doesn\'t exist (it should be

Answer 1

You should consult the documentation of whatever library is throwing the exception, to see how to get an error message out of its exceptions.

Alternatively, a good way to debug this kind of thing is to say:

except Exception, e:
    print dir(e)

to see what properties e has - you'll probably find it has a message property or similar.