# prompt-toolkit/pymux

A terminal multiplexer (like tmux) in Python

Repository: https://github.com/prompt-toolkit/pymux
Canonical: https://ross.abutalabs.com/products/pymux
Language: Python
License: BSD-3-Clause
License Family: permissive
Last push: 2023-11-03T17:04:19+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4596, "days_push": 1034, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1469, forks 83 (observed 2026-08-28T04:04:48.979343+00:00)

## What it is
Pymux is a terminal multiplexer written entirely in Python, similar to tmux and GNU Screen, allowing multiple applications to run in panes within a single terminal. It emulates a vt100 terminal per pane and offers tmux-compatible shortcuts and commands with some enhancements like fish-style command suggestions and true color support.

## Use cases
- run multiple terminal applications in one window
- split my terminal into panes like tmux
- keep terminal sessions running after disconnecting
- find a tmux alternative written in Python
- manage multiple shell sessions with keyboard shortcuts

## When to avoid
- you need maximum performance for output-heavy applications, where tmux's C implementation is faster
- you need full tmux feature compatibility or a actively maintained project
- you need Windows support

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: terminal-ui, cli, developer-tools
- domain: developer-tools
- platform: python, cli
- tags: terminal-multiplexer, tmux-alternative, vt100-emulation, session-management, command-line, linux, macos

## Member repositories
- prompt-toolkit/pymux (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:48.979343+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 2026-08-30T04:34:54.435870+00:00, confidence not recorded.
  - readme: https://github.com/prompt-toolkit/pymux (fetched 2026-08-28T04:04:48.979343+00:00, sha 2311cb0f853e)
- Data as of 2026-08-30T08:39:29.467469+00:00.