Lists & strings in Python | Khan Academy - Tracing lists | Intro to CS - Python | Khan Academy

How does the computer store a list in memory? Trace a program step-by-step to see how the computer interprets list definitions, list accesses, and list assignments. Discover why list indices start at zero instead of one! View the program used in this video at: https://www.khanacademy.org/python-program/tracing-lists/5520436670611456 Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now with our Intro to Computer Science - Python course! Course link: https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:automating-tasks-with-lists Course playlist: https://www.youtube.com/playlist?list=PLSQl0a2vh4HDkbhG0sDW0b-VZXykEIAe5 Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc TIMESTAMPS: 00:00 : list definition 01:00 : lists in memory 01:57 : list access 02:32 : self-referencing assignment 03:37 : len() function 04:29 : variable reassignment 04:57 : index error 05:30 : other optimizations