Web Reference: The setdefault() method returns the value of the item with the specified key. If the key does not exist, insert the key, with the specified value, see example below Python Mastery Workouts is our latest Python workbook.In this video we are going to take a detailed look at the solution.You find the whole book under: https... Sep 8, 2025 · The setdefault () method in Python is used with dictionaries to: Return the value of a specified key if it exists. If the key does not exist, it adds the key with a default value and returns that default. It’s a handy method for setting default values while avoiding overwriting existing ones.
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