Program design: course enrollment | Intro to CS - Python | Khan Academy

Code along with a software engineer in this worked example using objects and methods. Model a course in a school's registration system and use the __str__() method to define its string representation. Write methods to encapsulate the logic and validation for enrolling and unenrolling students.

View the program used in this video at:
https://www.khanacademy.org/python-program/course-enrollment/5273036534693888

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:building-software-with-classes
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 : course registration
00:36 : __init__() method
01:10 : __str__() method
02:25 : enroll() and unenroll() methods
03:25 : is_full() method
04:07 : capacity validation
05:01 : roster validation
...
https://www.youtube.com/watch?v=HrbXJZ7DTf4
Note: All Khan Academy content is available for free at (www.khanacademy.org)