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Python Basics: Selection and Iteration

Codio via Coursera


Code and run your first python program in minutes without installing anything!

This course is designed for learners with no coding experience, providing a solid foundation of not just python, but core Computer Science topics that can be transferred to other languages. The modules in this course cover printing, operators, iteration (i.e., loops), and selection (i.e., conditionals).

To allow for a truly hands-on, self-paced learning experience, this course is video-free. Assignments contain short explanations with images and runnable code examples with suggested edits to explore code examples further, building a deeper understanding by doing. You'll benefit from instant feedback from a variety of assessment items along the way, gently progressing from quick understanding checks (multiple choice, fill in the blank, and un-scrambling code blocks) to small, approachable coding exercises that take minutes instead of hours.


  • Fundamentals - Writing your first program!
    • Get started by coding and running your first program in minutes! Learn about the different types of data and how to store it in variables.
  • Operators
    • Use arithmetic operators (+, -, *, /, and %) and boolean operators (and, or, not) to manipulate data stored in variables.
  • Conditionals
    • Program decisions using conditionals so your script can produce different output based on data.
  • Loops
    • Use different types of loops to repeat sections of your program without copying-and-pasting the same lines over-and-over again.

Taught by

Elise Deitrick and Patrick Ester

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