Using the pass statement in an exception block ignores the exception. Exceptions should never be ignored. Instead, the user must add code to notify an exception occurred and attempt to handle it or recover from it.
The exception to this rule is the use of StopIteration or StopAsyncIteration when implementing a custom iterator (as those errors are used to acknowledge the end of a successful iteration).
Non-Compliant Code Examples
a=2b=0try:c=a/bexceptExceptionase:pass# should use a regular statement and not ignore the exception
Compliant Code Examples
a=2b=0try:c=a/bexceptZeroDivisionErrorase:print(e)passtry:do_iteration()exceptStopIteration:# Handling the iterator's successful conclusion is OKpasstry:do_async_iteration()exceptStopAsyncIteration:# Handling the iterator's successful conclusion is OKpass
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How to use this rule
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rulesets:- python-best-practices # Rules to enforce Python best practices.
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