libtmux
Typed library that provides an ORM wrapper for tmux, a terminal multiplexer.
Decision gist · record as of 2026-08-14
Yes. libtmux is actively maintained, has no external dependencies, supports current Python versions (3.10–3.14, PyPy), and solves a real problem for anyone automating tmux or testing tmux-aware tools. The MIT license imposes no restrictions. Start with a pinned version range (e.g., `libtmux==0.62.*`) since the package is pre-1.0.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- tmux >= 3.2a must be installed on the system; Python >= 3.10 required.
- Low friction: pure Python wheel with no runtime dependencies.
- Active maintenance (last commit 2026-08-13, release 33 days ago).
License · maintenance · safety
MIT (permissive) — MIT license (permissive). No restrictions on commercial or proprietary use; attribution appreciated but not required.
last release 2026-07-12 (33 days) · last repo commit 2026-08-13 · 1,204 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 13,140,422 downloads/mo, #1,294 on PyPI
Alternatives
Verify before relying
pip install libtmux
import libtmux
server = libtmux.Server()
session = server.sessions.get(session_name="my-session")
window = session.new_window(window_name="work")
pane = window.active_pane
pane.send_keys("echo hello", enter=True)- Whether the pytest plugin is automatically available or requires separate installation.
- Performance characteristics when managing many sessions/windows/panes concurrently.
- Compatibility with tmux forks or non-standard tmux builds.
What it is and what it does
libtmux is a typed Python wrapper around tmux that replaces shell command parsing with real object-oriented control. Instead of running `tmux ls` and parsing output, you work with `Server`, `Session`, `Window`, and `Pane` objects that reflect live tmux state. The library supports querying and filtering collections, traversing the hierarchy (pane → window → session), sending keystrokes to panes, and capturing output—all with full type hints.
The package is battle-tested in production through tmuxp (a declarative workspace manager built on top of it) and includes a pytest plugin for writing isolated tmux tests. It also supports context managers for cleanup, multiple tmux sockets, and a `.cmd()` escape hatch for raw tmux commands when needed. Code running inside a tmux pane can use `from_env()` to locate itself in the hierarchy.
Use it for
- Automate tmux session setup and teardown in deployment or development scripts without shell parsing.
- Write pytest tests for tools that interact with tmux, using isolated fixtures for each test.
- Build terminal UI tools or dashboards that need to query and control live tmux state programmatically.
- Capture pane output and send commands to tmux from Python applications or background agents.
- Implement tmux-based workflow orchestration (e.g., spawning parallel tasks in separate panes).
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
libtmux is actively maintained, has no external dependencies, supports current Python versions (3.10–3.14, PyPy), and solves a real problem for anyone automating tmux or testing tmux-aware tools. The MIT license imposes no restrictions. Start with a pinned version range (e.g., `libtmux==0.62.*`) since the package is pre-1.0.
Install
libtmux on PyPI
Before you install
Low friction: pure Python wheel with no runtime dependencies. Active maintenance (last commit 2026-08-13, release 33 days ago). Requires tmux >= 3.2a and Python >= 3.10; older versions available on maintenance branches for Python 2.x and tmux 1.8–3.1c.
tmux >= 3.2a must be installed on the system; Python >= 3.10 required.
License in practice
MIT license (permissive). No restrictions on commercial or proprietary use; attribution appreciated but not required.
Quickstart
pip install libtmux
import libtmux
server = libtmux.Server()
session = server.sessions.get(session_name="my-session")
window = session.new_window(window_name="work")
pane = window.active_pane
pane.send_keys("echo hello", enter=True)Verify before relying
- Whether the pytest plugin is automatically available or requires separate installation.
- Performance characteristics when managing many sessions/windows/panes concurrently.
- Compatibility with tmux forks or non-standard tmux builds.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release <4.0,>=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 33 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 13,140,422 / month, #1,294 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableEnvironment :: Web EnvironmentFramework :: PytestIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: MacOS :: MacOS XOperating System :: POSIXProgramming Language :: PythonProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: Implementation :: PyPyTopic :: Software Development :: Libraries :: Python ModulesTopic :: System :: ShellsTopic :: UtilitiesTyping :: Typed |
Evidence: libtmux-0.62.0-py3-none-any.whl
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