Tuples vs. Lists: How to Use Python's Immutable Data Types and What's the Difference?

In Python, lists and tuples are commonly used data containers, with their core difference lying in mutability. Lists are defined using `[]` and are mutable (supporting additions, deletions, and modifications), making them suitable for dynamic data (such as updated student grades or to-do items). Tuples are defined using `()` and are immutable (their overall structure cannot be changed, except for mutable elements within them), making them ideal for static data (such as fixed dates or configuration information). When creating them, note that a single-element tuple must include a comma (e.g., `(10,)`; otherwise, it is treated as a regular variable). Lists support modifying elements and adding/removing operations, while tuples cannot be directly modified. However, mutable elements within a tuple (such as lists) can still be modified. Lists are flexible but prone to accidental modifications, while tuples are safer and can be used as dictionary keys. In summary, a list is like a "flexible shopping list," and a tuple is like a "fixed contract"—choose based on whether the data needs to be modified.