Independent field notes / Vol. 01

Python,
below the surface.

Precise explanations of the machinery, patterns, and tradeoffs that make Python feel deceptively simple.

The index

Choose a rabbit hole.

4 notes, edited for signal.

Design repeatable timing experiments that measure the workload you actually care about.

intermediate28 minPython 3.10+

Build a small import hook while learning how finders, module specs, loaders, caches, packages, and failure cleanup divide responsibility.

advanced34 minPython 3.14

Use cProfile and pstats to locate expensive call paths before choosing what to optimize.

intermediate30 minPython 3.10+

Use disassembly as versioned evidence, connect stack operations to source semantics, and avoid turning CPython opcodes into false contracts.

advanced31 minPython 3.14

Editorial policy

No listicles. No folklore. No just trust me abstractions.

Every note should leave you with a better model of the system, not just another snippet to paste.