# mu-editor/mu

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

Repository: https://github.com/mu-editor/mu
Canonical: https://ross.abutalabs.com/products/mu-editor-mu
Homepage: http://codewith.mu
Language: Python
License: GPL-3.0
License Family: copyleft
Topics: education, editor, python, micropython, circuitpython, pygame, debugger
Archived: true
Last push: 2025-08-31T16:56:29+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 39, release rhythm 8, longevity 100
- inputs: {"age_days": 3921, "days_push": 367, "days_rel": 646, "gap_med": null, "n_releases_24m": 1}
- flags: prerelease_only, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1505, forks 463 (observed 2026-08-28T04:04:54.881110+00:00)

## What it is
Mu is a simple, beginner-focused Python code editor built with Python and Qt5, offering modes for standard Python, MicroPython, CircuitPython, and Pygame. It was designed with teachers and learners to provide a minimal, unintimidating development environment.

## Use cases
- simple python editor for kids learning to code
- flash microbit with micropython
- beginner-friendly ide for teaching python
- editor for circuitpython boards
- run pygame sketches easily
- teach programming in classroom

## When to choose
- teaching absolute beginners their first Python steps
- working with MicroPython/CircuitPython boards like micro:bit
- you want a minimal editor with one obvious way to do things

## When to avoid
- you need a maintained tool with ongoing bug fixes and updates
- professional development requiring advanced IDE features
- you need support for modern Python versions or new hardware

## Facets
- artifact type: application
- maturity: abandoned
- function: editor, testing
- domain: education, text-editors, developer-tools
- platform: windows, python, cross-platform
- tags: beginner-friendly, qt5, micropython, circuitpython, pygame, raspberry-pi, learning-to-code, debugging, macos, linux, desktop

## Member repositories
- mu-editor/mu (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:54.881110+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:32:42.629535+00:00, confidence not recorded.
  - readme: https://github.com/mu-editor/mu (fetched 2026-08-28T04:04:54.881110+00:00, sha fb3e10cc1141)
  - homepage: http://codewith.mu (fetched 2026-08-29T11:37:22.632111+00:00, sha 14f212aac0ca)
  - site_page: https://codewith.mu/en/about (fetched 2026-08-29T11:37:22.641158+00:00, sha 8c16a3abaef7)
- Data as of 2026-08-30T08:39:29.467469+00:00.