The exercises come from zhiwehu's Python-programming-exercises "100+ Python challenging programming exercises", which have 3 levels: Level 1 Beginner Beginner means someone who has just gone through ...

With countless applications and a combination of approachability and power, Python is one of the most popular programming ...

Ask the user to enter a positive integer. Use a loop to calculate the factorial. Return and print the result. Goal: Write a function that takes an integer and returns the sum of its digits.

Python.Org is the official source for documentation and beginner guides. Codecademy and Coursera offer interactive courses ...