Python conventions

Modern Python (3.11+) defaults.

Types

• Type hints required everywhere
• from __future__ import annotations at top
• Pydantic v2 for I/O, TypedDict for internal, Literal for string enums

Stdlib

• pathlib.Path over os.path
• dataclasses over manual init
• subprocess.run over os.system
• f-strings except logging
• match for tagged unions

Async