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What will happen if an exception occurs inside a 'with' block managing a file?

medium📝 Predict Output Q5 of 15
Python - Context Managers
What will happen if an exception occurs inside a 'with' block managing a file?
AThe program will crash without closing the file
BThe file will still be closed automatically
CThe file will remain open causing a resource leak
DThe file will be deleted automatically
Step-by-Step Solution
Solution:

  1. Step 1: Understand exception handling in 'with'

    The context manager ensures the __exit__ method runs even if an exception occurs.

  2. Step 2: Effect on file resource

    Because __exit__ closes the file, the file is closed safely despite the error.

  3. Final Answer:

    The file will still be closed automatically -> Option B

  4. Quick Check:

    Context managers close files even on exceptions [OK]
Quick Trick: 'with' always closes resources, even on errors [OK]
Common Mistakes:
  • Assuming files stay open on exceptions
  • Thinking program crashes without cleanup
  • Believing files get deleted automatically

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