[Solved] What will be the output of this code?try: raise KeyError('key missing') except LookupError: print('Caught LookupError') except KeyError: print('Caught KeyError') | Python

Python - Custom Exceptions

What will be the output of this code?

try:
    raise KeyError('key missing')
except LookupError:
    print('Caught LookupError')
except KeyError:
    print('Caught KeyError')

ARuntimeError

BCaught KeyError

CNo output

DCaught LookupError

Step-by-Step Solution

Solution:

Step 1: Identify exception raised
The code raises a KeyError, which is a subclass of LookupError.
Step 2: Match except blocks order
Python checks except blocks in order. The first except block matches LookupError, which is a parent of KeyError, so it catches the exception and prints 'Caught LookupError'. The second except block is not reached.
Final Answer:
Caught LookupError -> Option D
Quick Check:
Parent except block catches subclass exceptions first [OK]

Quick Trick: Parent exception blocks catch subclass exceptions if placed first [OK]

Common Mistakes:

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