Categories

Four pillars. Every entry answers the question of exactly one of them.

  • Runtime

    What CPython does with the objects, modules and frames you hand it — object layout, the import system, the eval loop, memory behaviour.

    6 entries

  • Concurrency

    What is actually parallel, and what the scheduling costs. Threads, the GIL, free threading, asyncio, subinterpreters and processes.

    2 entries

  • Tooling

    What the toolchain does at build, import or check time — import graphs, annotation resolution, profilers, benchmark harnesses, packaging.

    2 entries

  • Frameworks

    Django, FastAPI and SQLAlchemy measured inside a real request rather than in the quickstart, counted in queries and milliseconds.

    1 entry

Python, its runtimes, frameworks, and the systems beneath them — read from source, measured, not assumed.

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