FastAPI dropped Pydantic v1 support. If your APIs still use v1, here’s everything that breaks, what changes in v2’s Rust core, and a full migration checklist with code examples.
Stop watching your CI pipeline get backdoored. PyPI’s 2026 security upgrades — Trusted Publishing, Sigstore attestations, and the PSF’s $1.5M Anthropic grant — finally give maintainers real defenses against supply chain attacks. Here is what changed and what to do now.
Fire off 50 async tasks and one timeout can bring down 49 others. asyncio.TaskGroup fixes this with structured concurrency — here are the patterns that matter in 2026.
You try to use a dict as a key. Python raises TypeError: unhashable type. Python 3.13 finally has the answer: frozendict — immutable, hashable, built-in.
Python tuple unpacking makes swapping variables a one-liner. Here’s how it works, with real code examples and output.
Stop waiting for pip. uv 0.10.0 installs packages 10-100x faster, stabilizes Python upgrades, and adds workspace discovery — here is what changed and how to migrate.
You use async/await daily but treat it as magic. This deep dive explains the machinery — coroutine objects, awaitable protocol, and cooperative scheduling — so you write better async Python.
You have written a library you are proud of. It solves a real problem, the tests pass, and colleagues have asked how to install it. You could point them to a GitHub repo and a README — or you could publish it to PyPI in…
Django 6.0 drops Celery, adds native background tasks, template partials, and CSP middleware. Upgrade now — Django 4.2 EOL is April 2026.
Stop re-sorting your list. Python’s heapq gives you a min-heap that finds the smallest element in O(1) time. Learn heaps, priority queues, and when to use each — with real examples.
