Local variables and scope
14-minute lesson · module-functions-03
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Local variables and scope
14-minute lesson · module-functions-03
- Understand that variables created inside a function are *local*.
- Read the call stack and frames to see local vs. global scope.
- Avoid relying on global variables inside functions.
Source attribution
Status: adapted
How to Think Like a Computer Scientist: Interactive Edition — source · Functions / Variables and parameters are local
Adaptation notes. Reading rewritten in our voice. Hidden tests authored specifically for PyTutor AI. CodeLens demo shows the call stack with two frames.
License notes. Verify chapter-level license metadata on Runestone before copying any text verbatim. This lesson contains no verbatim quotations.