Eli Bendersky • 6/14/2026

Plugins case study: Pluggy

This article provides a detailed case study on Pluggy, a Python library for developing plugin systems originally from the pytest project. It explains how Pluggy works using hooks, with step-by-step code examples for defining hooks, implementing plugins, and loading them via setuptools entry points. The post also reviews how Pluggy aligns with fundamental concepts of plugin infrastructures, making it a valuable resource for developers building extensible tools or libraries in Python.

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#Python #plugins #pytest