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Origintracer

A low-level asynchronous web framework observability system. The system can trace nginx, gunicorn, Uvicorn, django and celery.

https://origintracer.app/docs/
When str.lower() is a security vulnerability in Python

A Python security vulnerability caused IDNA 2003 handling to use the interpreter’s current Unicode case-folding rules instead of the Unicode 3.2 rules required by the specification.The fix makes Python’s case-folding behavior match Unicode 3.2 for StringPrep, restoring standards-compliant IDNA encoding and addressing CVE-2026-17084.

https://sethmlarson.dev/when-str-lower-is-a-security-vulnerability
The Mullet Stack - JavaScript in the front, Python in the back.

This is a practical guide to building a modern full-stack application with FastAPI and Pydantic on the Python backend and React and TypeScript on the frontend. It explores how their different type systems work together and shows how generating frontend types from FastAPI’s OpenAPI schema prevents backend and frontend models from drifting apart.

https://seanhelvey.com/mullet-stack/guide/