Python

Join the Python Track
Python is a clear and powerful object-oriented programming language with an elegant and easy-to-read syntax. It is ideal for prototyping and ad-hoc tasks, but also sees wide use in scientific computing, web development, and automation.
Join the Python Track
Track mentors

157 Mentors

Our mentors are friendly, experienced Python developers who will help teach you new techniques and tricks.
Track students

114,808 Students

Join thousands of students who have enjoyed learning and improving their skills by taking this track.
Track exercises

117 Exercises

Hundreds of hours have gone into making these exercises fun, useful, and challenging to help you enjoy learning.

About Python

prices = {'apple': 0.75, 'egg': 0.50}
cart = {
  'apple': 1,
  'egg': 6
}

bill = sum(prices[item] * cart[item]
           for item in cart)

print(f'I have to pay {bill:.2f}')

Python is a strong language for beginners.

There are many resources available for programmers of all levels, the code is highly readable, and in many cases phrases are comparable to those in the English language.

Code can be written and executed from the command line, in an interactive IPython session, or in a Jupyter (IPython) notebook.

The most common form of Python is compiled in C; this is often invisible to the beginning programmer, but if there are uses for which exceptionally fast implementation is needed then C extensions can be written to optimize Python execution.

Python is used extensively in scientific computing, finance, games, networking, internet development, and in assembling pipelines of other programs.

Python was started by Guido van Rossum in 1989; its name is an homage to the comedy troupe Monty Python.

This track uses Python 3. It is highly recommended that students upgrade to at least Python 3.6 as some features used by this track may not be supported in earlier version of Python.

Python development is shepherded by The Python Software Foundation and there are active community-based user groups worldwide.

Join the Python track

I really like the ability to look at other people's solutions.

I'm working through the F# and Python tracks at the moment. Really like the ability to look at other people's solutions. I've had some helpful comments from others too.

Relaxed. Encouraging. Supportive.

Meet the Python Track mentors

Once you join the Python language track, you will receive support and feedback from our team of mentors. Here are the bios of a few of the mentors of this track.

Avatar of Peter Tillemans

Peter Tillemans https://github.com/ptillemans

I am an electronics engineer and language geek who learned programming on an hp-41 and C-64. Now I do mostly java, javascript, python, rust and haskell. I believe that code should sing its intent so the last row in the hall understands the last syllable.
Avatar of Dustin Heckmann

Dustin Heckmann https://github.com/dustin-heckmann

I've been writing Python code for 10+ years. I value clean, readable code and Python helps me achieve this.
Avatar of Thales Alexandre F. Albuquerque

Thales Alexandre F. Albuquerque https://github.com/Vitruvia

I'm a medical student who programs as a hobby. I love python for it's elegance and readability; it was my first langauge and it remains my favorite.
Avatar of Andrea Sessa

Andrea Sessa https://github.com/Sessa93

I have used Python mainly for Machine Learning/Reinforcement Learning for my Master thesis.
Avatar of Simon Bukin

Simon Bukin https://github.com/simonbcodes

I'm a software developer most interested in backend web technologies and data. I've been a tutor for Python at my university and am happy to be a mentor here at Exercism.
Avatar of Jeffrey Bian

Jeffrey Bian https://github.com/jeffreybian

I am a software architect building platforms for 3D renderings and eCommerce. Python 2 is my day to day language but I also work with Python 3 on my side projects. I am hoping to share my knowledge with people!
Fun. Challenging. Interesting

Community-sourced Python exercises

These are a few of the 117 exercises on the Python track. You can see all the exercises here.

ISBN Verifier
easy
conditionals
integers
parsing
strings
type conversion
Twelve Days
medium
lists
strings
text formatting
Markdown
easy
refactoring
text formatting
Food Chain
medium
algorithms
conditionals
loops
Sieve
easy
algorithms
conditionals
lists
loops
math
Linked List
easy
algorithms
conditionals
lists
Passionate. Knowledgeable. Creative.

Meet the Python Track maintainers

The Python Maintainers are the brains behind the Python Track. They spend their spare time creating interesting and challenging exercises that we can all learn from. We are incredibly grateful for their hard work. Here are the bios of a few of the maintainers of this track.

Avatar of Dog

Dog

I can not only fetch JSON, but parse it too.
Avatar of Michael Morehouse

Michael Morehouse My Techie Blog

Although Python wasn't my first -- and won't be my last -- programming language, it remains my favorite for introducing others to the joys, the pains, the infrequent ecstacies, and the occasional terrors of life before the REPL.
Avatar of Corey McCandless

Corey McCandless

Big fan of homemade bread and reusable code.

Get started with the Python track. As with everything on Exercism, it's 100% free!

Join the Python Track