pythonic-conventions

name	pythonic-conventions
description	Essential Pythonic idioms and conventions. Apply when writing or reviewing Python code to ensure idiomatic patterns like comprehensions, built-in functions, context managers, and unpacking.
user-invocable	false
layers	{"rules":"rules.md","examples":"examples.md"}

Pythonic Conventions

Essential Python idioms that make code more readable, concise, and efficient.

Layers:

• rules.md - Quick reference and concise rules
• examples.md - Detailed code examples

Quick Reference

Pattern	Use Instead Of
List/dict/set comprehensions	Manual loops to build collections
enumerate()	Manual index tracking
zip()	Manual parallel iteration
any() / all()	Loop with flag variable
Context managers (with)	Manual resource cleanup
Unpacking	Index access for known structures
in operator	Manual membership loops
Walrus operator (:=)	Separate assignment + condition
Generator expressions	List comprehension when iterating once
defaultdict / Counter	Manual dict initialization
Modern generics ([T] syntax)	TypeVar declarations

For rules: see rules.md For examples: see examples.md