BitWithBite
Python Worksheet
🐍 Exceptions
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After this worksheet you can
Catch errors with try/exceptUse else and finallyRaise exceptionsName common error types📚 Quick Recap
🎯 What you'll learn: The full try / except / else / finally structure. Python's exception hierarchy. Catching multiple exception types. Raising exceptions with raise. Creating custom exception classes. The EAFP principle. Using exceptions as control flow in real programs.
🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4
1Errors are caught with:
2int('abc') raises:
3finally runs:
4Raise your own error with:
🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11
5Risky code goes in the block.
61/0 raises .
7Wrap int(input()) in try/except ValueError.
8What error does [1,2][5] raise?
9When does else (after try) run?
🚀 Section C · Challenge ● CHALLENGE 5
10Why catch exceptions?
💭 Reflection — the most useful thing I learned:
A ___/4 B ___/11 C ___/5 Total ___/20
Teacher's Signature
Parent's Signature
✂ answer key — fold or cut before handing out
1-B 2-B 3-C 4-B | 5 try 6 ZeroDivisionError 7 = try: n=int(input()) except ValueError: print('Not a number') 8 = IndexError 9 = Only if no exception occurred | 10 = To handle failures gracefully instead of crashing