Python uses try/except, not try/catch. The only reason to catch KeyError is to detect missing keys, so if you are trying to do that, only wrap your dict access

Python uses try/except, not try/catch. The only reason to catch KeyError is to detect missing keys, so if you are trying to do that, only wrap your dict access rather than wrapping large blocks of code where anything could happen. If you are writing code to ignore errors, that is a bug in your own code, not a python bug.