pylint-errors
E0712 (catching-non-exception)
Problematic code:
class FooError: pass try: 1 / 0 except FooError: pass 
Correct code:
class FooError(Exception): pass try: 1 / 0 except FooError: pass Rationale:
Used when a class which doesn’t inherit from Exception is used as an exception in an except clause.