Building & Maintaining Pymunk: 18 Years of Physics by Victor Blomqvist | PyConSe | 2025

In 2007, when Python 2.5 was new and the first iPhone hadn't yet reached Sweden, Pymunk was born! Now, 18 years later, it has officially come of age. This is the story about the 2D physics library Pymunk, told by its creator. With Pymunk's creation and evolution as a backdrop, I will share my thoughts and insights into maintaining a mildly successful open source library long term. We will explore a history that includes PyWeek-winning games, 100+ research papers on everything from COVID-19 to moral philosophy and mypy bugs. And don't worry, you don't need to know the GJK collision algorithm, or even Newton's laws of motion, to follow along! #pyconse #pyconse2025