Python - Custom Exceptions
Which of the following try-except blocks correctly catches all exceptions derived from
Exception but excludes SystemExit and KeyboardInterrupt?Which of the following try-except blocks correctly catches all exceptions derived from Exception but excludes SystemExit and KeyboardInterrupt?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Understand Exception Hierarchy
Exceptionis a subclass ofBaseExceptionthat excludes system-exiting exceptions likeSystemExitandKeyboardInterrupt.Step 2: Analyze Options
try: pass except Exception: pass catches all exceptions derived fromException, excluding system-exiting ones. try: pass except BaseException: pass catches all exceptions including system-exiting. Options C and D catch only specific exceptions.Final Answer:
Option A -> Option AQuick Check:
CatchExceptionto exclude system-exiting exceptions [OK]
Quick Trick: Catch Exception to exclude system-exiting exceptions [OK]
Common Mistakes:
- Using BaseException to catch all exceptions including system-exiting
- Catching only SystemExit or KeyboardInterrupt separately
- Assuming Exception includes system-exiting exceptions
Master "Custom Exceptions" in Python
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