Python Interview Questions · interview question
Which practice avoids a common mistake with pathlib and File I/O?
Multiple choiceMediumpython-interview-2026interviewpythonpitfall
Answer and explanation
Correct answer
B. Do not treat file I/O as harmless just because the code is short; boundaries like encoding, existence, and partial writes still matter.
Why
Do not treat file I/O as harmless just because the code is short; boundaries like encoding, existence, and partial writes still matter. This is a common failure mode in real Python code and a frequent interview follow-up.
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