Data Science and Machine Learning (Theory and Projects) A to Z - Function and Module in Python: Output Arguments and Ret

The video tutorial explains the concept of function variables, their scope, and how they are defined and accessed within a function. It discusses the difference between local and global variables, and how memory allocation affects variable accessibility. The tutorial also covers how to access variables outside of their defining function using return statements, providing practical examples and scenarios.

Describe the difference between local variables and global variables.

How does variable scope affect the accessibility of variables in nested functions?

What is the role of the return statement in a function?