GitHub – Network firewall for Python apps with one function call

Summary: GitHub is a zero-dependency Python library that restricts outbound network access at runtime by enforcing an allow list. It blocks any socket calls outside this list using Python's audit hook system, providing supply chain defense, AI agent guardrails, and test isolation.

What it does

It intercepts socket calls via Python's PEP 578 audit hooks and blocks unauthorized network requests without monkey-patching or proxies. It supports libraries like requests, httpx, aiohttp, Django, and FastAPI.

Who it's for

Developers needing runtime network restrictions for supply chain security, AI agent control, or test environment isolation in Python applications.

Why it matters

It prevents unauthorized outbound connections, enhancing security by blocking compromised dependencies or uncontrolled network activity.