Author: Khan Academy via YouTube
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Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now with our Intro to Computer Science – Python course!

How does the computer execute a function call? Learn how the computer uses stack frames to separate its memory during function execution. Trace a program step-by-step to see how arguments get passed into a function call and how return values get passed out. View the program used in this video at: https://www.khanacademy.org/python-program/villager-greetings/5415007350603776

Course link: https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:playing-games-with-functions
Course playlist: https://www.youtube.com/playlist?list=PLSQl0a2vh4HDkbhG0sDW0b-VZXykEIAe5

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TIMESTAMPS:
00:00 – 00:57 : reading the function definition
00:58 – 01:17 : global variable assignment
01:18 – 01:46 : calling the function
01:59 – 02:42 : stack frames
02:43 – 03:39 : returning a value
03:40 – 04:31 : second function call
04:32 – 05:01 : ignoring the return value
05:02 – 05:33 : terminating the program

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