Pymunk

Pymunk is an easy-to-use pythonic 2D physics library designed for games, demos, and simulations. It is built on top of Munk2D, a fork of the robust Chipmunk2D C physics library. First released in 2007, Pymunk remains actively developed and maintained, with its current version being 7.2.0, and has a regular release cadence with several updates per year.