python - Abrarqasim Blogs

Python 3.15 RC2: I Finally Tested Against a Release Candidate

Python 3.15's final RC is out with five weeks to October. I ran my test suites against it: lazy imports, frozendict, what broke, and the…

Rayyan | September 4, 2026 | 8 min

Backend

Python Dependency Management: The Import You Never Declared

A transitive dependency broke fresh installs of a popular Python CLI overnight. What that failure taught me about python dependency management done properly.

Rayyan | August 29, 2026 | 7 min

Backend

Python 2 vs Python 3: What a 2.4M-Line Migration Looks Like

EVE Online is migrating 2.4 million lines of Python 2 in 2026. What CCP's dev blog teaches about python 2 vs python 3 and surviving…

Rayyan | August 27, 2026 | 8 min

AI

Sandboxing AI-Written Python: Check for /dev/kvm First

Before you compare Python sandbox libraries, check whether your host exposes /dev/kvm. It decides which isolation tier you can actually build on.

Rayyan | August 24, 2026 | 9 min

Backend

FastAPI Async in 2026: The def vs async def Choice I Keep Getting Right

In FastAPI, async def is a promise not a superpower. Here's the def vs async def rule I use, the incident that taught me the…

Rayyan | July 17, 2026 | 8 min