Python Interview Questions · interview question
Which statement about defaultdict for Grouping is the strongest interview answer?
Multiple choiceEasypython-interview-2026interviewpythonstatement
Answer and explanation
Correct answer
C. Defaultdict supplies a default value factory so grouping and aggregation code can avoid repeated missing-key checks.
Why
defaultdict supplies a default value factory so grouping and aggregation code can avoid repeated missing-key checks. This is the base concept interviewers commonly test first.
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