Web Reference: Feb 27, 2026 · The Problem: Default arguments are evaluated once at definition time. The Solution: Use None as the default and initialize the mutable object inside the function body. Jul 16, 2009 · Using mutable values passed in as arguments as local temporaries is an extremely bad idea, whether we're in Python or not and whether there are default arguments involved or not. Jan 23, 2025 · Using mutable default arguments in Python can lead to subtle and hard-to-debug issues. By using None as the default value and initializing mutable objects inside the function, you can avoid these pitfalls and ensure your functions behave as expected.
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Python Default Argument Trap Code Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $19M - $32M
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Last Updated: April 3, 2026
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