pytest is a testing framework that makes it easy to write and run tests for Python code. It simplifies test creation compared to Python's built-in unittest module and provides features like flexible test discovery, detailed failure reporting, and powerful assertions. Developers use pytest to catch bugs early, ensure code reliability, and maintain confidence when refactoring or adding new features.

Brianna Laugher, Bruno Oliveira, Floris Bruynooghe, Freya Bruhin, Holger Krekel, Others (See AUTHORS), Ronny Pfannschmidt