Python

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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.
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Track mentors

117 Mentors

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

69,712 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 Steve Lewis

Steve Lewis https://github.com/stevelle

I appreciate python among the many languages I have used for expressiveness and readability. I have used it at work and for personal projects.
Avatar of Thomas Koruga

Thomas Koruga Personal Page

I love python for its readability and general-purpose. There is an open source library for basically everything. If you can imagine it, it probably exists. That's fascinating.
Avatar of James Fu

James Fu https://github.com/zhengfu23

Python is one of my favorite languages. I fell in love with it seeing the beautiful absence of brackets and semi-colon. I also love it for list comprehension and its extensive use in Machine Learning and Raspberry Pi. I think everyone should learn Python!
Avatar of Cameron MacDonald

Cameron MacDonald GitLab

Python was my very first language and is still one of my favorites to write in. It's super simple to understand, easy to translate pseudocode to, and wonderfully verbose in its errors. Join me in the Python cult!
Avatar of Tobias Weber

Tobias Weber https://github.com/tewe

I came to Python for the GUI support, and I stayed because it is simple enough conceptually that humans can understand how it works.
Avatar of Carl Anderson

Carl Anderson

Former Google SRE. While at Google, I was a Python readability reviewer and loved it! Since then I've tried to stay current with python 3, but there's always something new to learn...
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.

Markdown
easy
refactoring
text formatting
Difference Of Squares
easy
math
Rectangles
easy
algorithms
logic
pattern recognition
Raindrops
easy
conditionals
integers
text formatting
DOT DSL
medium
classes
domain specific languages
equality
graphs
lists
object oriented programming
test driven development
transforming
Change
medium
algorithms
arrays
loops
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 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.
Avatar of Dog

Dog

I can not only fetch JSON, but parse it too.

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