pathfinder is deprecated, we highly recommend using the WPILib Trajectory Generation/Following support introduced in the 2020 season. All trajectory related features should be usable from RobotPy.
These are python bindings around Jaci B’s PathFinder library. From the original documentation:
Cross-Platform, Multi-Use Motion Profiling and Trajectory Generation.
Pathfinder is a library for generating Motion Profiles, a way to smoothly fit and follow a trajectory based upon given waypoints.
Note: This requires C++ 11 and Python 3.5+
Installation and usage documentation can be found at http://robotpy-pathfinder.readthedocs.io