Home / Additional Python Resources

Introduction to CS and Programming using Python
(Fall 2020)

You are not logged in.

If you are a current student, please Log In for full access to the web site.
Note that this link will take you to an external site (https://shimmer.csail.mit.edu) to authenticate, and then you will be redirected back to this page.

If you're having trouble with a particular concept or simply want to have access to more information, try one of the following links.


  • Official Python 3 Documentation - "official"/technical explanation of what a particular function/operator does, examples of correct syntax, what the various libraries are, etc.



  • Python Tutor - an excellent way to actually visualize how the interpreter actually reads and executes your code
  • DiffChecker - compares two sets of text and shows you which lines are different
  • Debugging in Python - steps you can take to try to debug your program



  • Stack Overflow - a large Q&A forum for programming concepts (not just Python). Try searching here before you post on the edX forum, and you may find that someone has already answered your question.


  • Python Challenge - a series of puzzles you can try to test your Python abilities
  • Project Euler - additional programming challenges you can try once your Python knowledge becomes stronger; problems are sorted by increasing difficulty
  • Coding Bat - problems you can solve within an online interpreter, specifically loops and lists
  • Codewars - improve your skills by training on real code challenges
  • Dictionaries - exercises on Python dicts
  • Classes and Object Oriented Programming - exercises on Python classes