These are traditional unit tests written with pytest Failures on these tests will cause alarms if code is merged into main ...

Your Python cache can run the same work twice, even with the GIL. See the check-then-act race, the lru_cache gotcha, and how ...

print("hello world, I'm learning Python"!) ...

Then a colleague asked a question that changed everything: "What information does the model actually have when it answers?" ...

I loaded a large JSON file in Python and watched memory jump from 43 MB to 808 MB. Here’s what happened and how streaming changed everything.

本記事はPython学習者向けの学習記録であり、掲載コードは学習目的のサンプルです。 条件に合う対象の中で、最大値や最小値が同点の要素が複数あるとき、全員の名前をリストで集めて返す ...

A production-ready template for building AI agent backends with FastAPI and LangGraph. Handles the hard parts — stateful conversations, long-term memory, tool calling, observability, rate limiting, ...