Linear algebra for ML enthusiasts
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The Python Interview Trap
5 min1 sessions
Master the single most common Python interview question: mutable default arguments. Understand how Python evaluates memory under the hood to write bug-free code.
Sessions
1
Mutable Default Arguments
Learn why Python default arguments persist across function calls and how to fix this classic whiteboard interview question.
5 min
What you'll achieve
Identify why mutable default arguments persist across multiple function calls.
Explain the critical difference between Python's definition time and execution time.
Implement the standard Pythonic idiom using None to prevent memory leaks.