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Mu

A small, simple editor for beginner Python programmers. Written in Python and Qt5.

From mu-editor·Updated June 25, 2026·View on GitHub·
·Archived

Mu - A Simple Python Code Editor ================================ The project is written primarily in Python, distributed under the GNU General Public License v3.0 license, first published in 2015. It has gained significant community traction with 1,509 stars and 464 forks on GitHub. Key topics include: circuitpython, debugger, editor, education, micropython.

Latest release: v1.2.2.alpha.1Test signing release
November 25, 2024View Changelog →

Mu - A Simple Python Code Editor

THIS PROJECT IS NO LONGER MAINTAINED

.. image:: https://mu.readthedocs.io/en/latest/_images/logo.png

Mu is a simple code editor for beginner programmers based on extensive feedback
from teachers and learners. Having said that, Mu is for anyone who wants to use
a simple "no frills" editor. Most importantly, have fun!

Mu is a modal editor with modes for many different ways to use Python to create
cool and interesting things.

Mu is written in Python and works on Windows, macOS, Linux and Raspberry Pi.
The project's public facing website is
https://codewith.mu/ <https://codewith.mu/>. We celebrate the work done by
users of mu at https://madewith.mu/ <https://madewith.mu/>
.

We have extensive developer documentation <https://mu.readthedocs.io/>_
including a guide for
setting up a development environment <https://mu.readthedocs.io/en/latest/setup.html>,
contributor guidelines <https://mu.readthedocs.io/en/latest/contributing.html>
and
some suggested first steps <https://mu.readthedocs.io/en/latest/first-steps.html>_.

We want our community to be a friendly place. Therefore, we expect contributors
and collaborators to follow our
Code of Conduct <https://mu.readthedocs.io/en/latest/code_of_conduct.html>_.

Contributors

Showing top 12 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from mu-editor/mu via the GitHub API.Last fetched: 6/29/2026