launch_frontend_py
- Software
- Middleware
- Tool
A Python frontend for the ROS 2 launch system that lets launch files be written in Python with the same actions and substitutions as the XML and YAML frontends.
Made by ROS 2 Tooling Working Groups.
Source on GitHub: github.com/ros-tooling/launch_frontend_py (opens in a new tab). Facts read at commit 3b15078 (opens in a new tab).
Licenses
- Code
- Apache-2.0 (opens in a new tab)
Read by Robotheca from LICENSE (opens in a new tab) (Apache-2.0) at commit 3b15078 (opens in a new tab), on 16 Oct 2026.
- Commercial use
- Yes
What it does
- Provides a Python-language frontend to ROS 2 launch, identical in usage to the XML and YAML versions.
- Helps teams that already rely on Python launch files, easing migration to the official frontends.
- Offers the same concise, declarative style while keeping launch files in Python.
- Reserved Python keywords are handled by appending an underscore, such as for_ for the for action and if_ for conditions.
- Example usage defines arguments and executables with conditional execution via if_.
Written by Robotheca from the project's README (opens in a new tab) at commit 3b15078.
Getting started
- Difficulty
- Intermediate
- How to start
- The project's README (opens in a new tab)
Maintenance
- Status
- Maintained: a commit in the last 12 months
- Newest commit
- 22 Oct 2025 on main
- Latest release
- None published on GitHub
Checked on GitHub on 16 Oct 2026.
Links
Robots that can run it
No robot on Robotheca is linked to it yet. Links come from a robot's robot.yaml, from its dependency files read as text, or from Robotheca's editors.
Robotheca lists software as a reference: nothing is hosted or run here, and every fact links to where it was read.