Python Expert — PEP 8, type hints, testing and modern idioms for Python 3.10+
Expert Python guidance: PEP 8 and Black style, type hints everywhere, robust error handling, modern idioms (f-strings, pathlib, dataclasses, Pydantic), testing with pytest, common anti-patterns
- What
- Expert Python guidance: PEP 8 and Black style, type hints everywhere, robust error handling, modern idioms (f-strings, pathlib, dataclasses, Pydantic), testing with pytest, common anti-patterns
- Cost
- Free
- Needs
- a Python 3.10+ project to write, debug, review or refactor — the skill is an expertise guide the agent follows, not software
- Install
- Copy the installer prompt below into your Muse — your agent does the rest.
Curated by Skill Harbor — @personamanagmentlayer's python-expert (from the PCL Standard Library examples): an expert Python developer skill for Python 3.10+. Core principles: PEP 8 with Black defaults (88-char lines), type hints on every function signature (typing module, TypeAlias), robust error handling with specific exception types and context managers (no bare except), modern idioms (f-strings, pathlib over os.path, dataclasses/Pydantic, docstrings, @property), plus testing discipline with pytest, performance rules (profile before optimizing, generators, builtins), ready-to-copy templates (type-hinted functions, validating dataclasses, resource context managers), anti-patterns with fixes (mutable default arguments, bare exceptions), and a curated tools list (Black, ruff, mypy, pytest, pydantic, httpx, rich, typer). Honest caveats: the skill is methodology guidance (no executable tooling ships with it); the frontmatter states no license but an embedded PCL metadata comment claims MIT, while the catalog manifest records Apache-2.0 — the manifest takes precedence. Apache-2.0 licensed per the manifest. Skill Harbor never reviews the code, review it yourself before use. Discovered via skills.sh.
Version:
Install
Prerequisites: a Python 3.10+ project to write, debug, review or refactor — the skill is an expertise guide the agent follows, not software Install "Python Expert — PEP 8, type hints, testing and modern idioms for Python 3.10+" for me. It gives my agent @personamanagmentlayer's Python expertise: PEP 8/Black style, type hints everywhere, robust error handling (specific exceptions, context managers), modern idioms (f-strings, pathlib, dataclasses, Pydantic), pytest testing discipline, performance rules, copy-ready templates (type-hinted functions, validating dataclasses, resource context managers), and anti-patterns with fixes. License note: the frontmatter states no license and an embedded PCL comment claims MIT, but the catalog manifest records Apache-2.0 — manifest takes precedence. Repository: https://github.com/personamanagmentlayer/pcl/blob/main/docs/examples/skills/python-expert/SKILL.md 1. Fetch the SKILL.md file (and any helper files) from the repository path into a temporary folder and summarize what it does in one or two sentences. 2. Safety check: review the SKILL.md and scripts for anything suspicious (unexpected network calls, shell commands, credential harvesting). This repo should contain zero secrets in code. Verify that holds here; STOP on any red flag and tell me. 3. Install it as a skill: copy SKILL.md and its helper files into the agent's skills directory, in a folder named "python-expert". 4. Verify with no network calls: frontmatter valid, files in place. 5. Report what was installed, where, and what I still need to do myself (nothing — it's an expertise guide the agent applies when writing or reviewing Python code). GitHub is optional: if I have a GitHub account or the gh CLI, you may use it; otherwise public access is fine. Never require it unless it's in the prerequisites above. Rules: don't touch anything outside the temp folder and the install target. If anything looks off, stop and ask me.
Questions
How do I install a build?
Every product page includes a copy-paste install prompt. Paste it into your Muse and it sets the build up for you — no manual configuration.
Where does my money go?
Straight to the seller. Skill Harbor never processes payments: checkout happens on the seller’s own page, usually Stripe.
What does the ✓ next to a creator’s name mean?
It means we confirmed the identity of the person behind the listing. It says nothing about the code itself — always check a build before installing it.