pythonic-conventions

掌握Python编程中的核心惯用语与最佳实践。在编写或审查Python代码时，应熟练运用诸如列表推导式、内置函数、上下文管理器以及解包操作等典型模式，确保代码既符合Python语言特性，又兼具优雅与高效。

SKILL.md

--- frontmatter

name: pythonic-conventions
version: 1.1.0
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

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