Lists & strings in Python | Khan Academy - List iteration | Intro to CS - Python | Khan Academy

Iterate over the elements of a list using while loops, for loops with range(), and for-each loops. When should you iterate by index and when should you iterate by element? View the program used in this video at: https://www.khanacademy.org/python-program/list-iteration/4817445047091200 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 : intro 00:11 : accessing every element in a list 00:40 : iterating over a list - while loop 01:44 : iterating by index - for loop with range() 02:50 : iterating by element - for-each loop 03:47 : why iterate by index?