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Things I've learned and want to share, from technology and work to ways of thinking and everyday life.

Oct 16, 2026 · 16 min read · Part 2 · Python from the inside out

Inside CPython: everything is an object, from numbers to modules, and what import really does

What an object looks like in memory, how types and functions are objects too, then import step by step: sys.modules, finders, loaders, packages, .pyc files, up to the moment uvicorn loads a FastAPI app.
- #python
- #programming
Oct 16, 2026 · 13 min read · Part 1 · Python from the inside out

How Python runs concurrent code: from processes, threads and coroutines down to the kernel, and back up to FastAPI

Processes, threads, the GIL, coroutines, the event loop, epoll and FastAPI: what each layer does when a Python server holds thousands of requests at once, with experiments you can run.

Inside CPython: everything is an object, from numbers to modules, and what import really does