Enforcing Python Dunders

Quality score: 70/100 · Category: Engineering · Sub-category: languages

lang:python

Ensure Python classes include appropriate, developer-friendly dunder methods—especially __repr__ and __str__. Use when: (1) Writing or modifying Python class definitions in .py files, (2) Refactoring existing Python classes, (3) Adding or improving __repr__, __str__, or natural arithmetic/comparison/container dunders. Do NOT use for: tests, fixtures, mocks, stubs, non-Python files (YAML, JSON, TOML), auto-generated code vendor libraries, or when user explicitly asks not to modify dunders. Ignored paths: tests/, *_test.py, test_*.py, .venv/, build/, dist/, migrations/, __init__.py.

What this skill does

Enforcing Python Dunders is a production-ready Claude Code skill (quality score 70/100) in the languages sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/enforcing-python-dunders/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when: (1) Writing or modifying Python class definitions in .py files, (2) Refactoring existing Python classes, (3) Adding or improving __repr__, __str__, or natural arithmetic/comparison/container dunders.

Who uses this skill

The Enforcing Python Dunders skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/enforcing-python-dunders
curl -L https://claudskills.com/skills/enforcing-python-dunders/SKILL.md \
  -o ~/.claude/skills/enforcing-python-dunders/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/enforcing-python-dunders/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/enforcing-python-dunders/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\enforcing-python-dunders\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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