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Scope is about assignment, not mutation PREMIUM

Trey Hunner smiling in a t-shirt against a yellow wall
Trey Hunner
2 min. read 3 min. video Python 3.7—3.11

In Python, scope is about assignment; it's not about mutation.

Assignment and the scope of a variable

Let's take a global variable, numbers, that point to a list of numbers:

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