# Python Env Manager

> Single source of truth for "which Python environment manager does this project use, and how do I install a package with it?". Owns the detection table (pixi / uv / poetry / hatch / conda+mamba / pip+venv), the install / remove / upgrade commands per manager, and the bootstrap path when no manager is in place (default recommendation: pixi). Stops at "the install command was issued with the right manager and the package is importable". TRIGGER when (any of these): (1) about to install / add / pin / upgrade / remove a Python package — pip install, pixi add, uv add, poetry add, conda install, etc. — under any framing; (2) data-science-python-stack § "Missing dependency" surfaced a missing import and an install is the next step; (3) a workflow skill's Stop condition fired on a missing dependency (build-ml-pipeline, evaluate-ml-pipeline, organize-ml-workspace, audit-ml-pipeline); (4) starting a new Python project and no manager is in place yet (bootstrap with pixi unless the user picks otherwise); (5) audit-ml-pipeline (or another agent-only consumer) needs the agent feature (ipython + pyright) and it isn't yet present in the project's manifest — see § "Agent feature". SKIP when: the project is non-Python; the install/add command is for a non-Python tool (npm, brew, apt, cargo, gem); the dependency is already installed and importable; the work is purely editing existing source code with no new dependency in play. HOW TO USE: detect first, then install. Run the § "Detection" table at the project root before issuing any install command. If no manager is detected, ask the user before bootstrapping. Never install with a different manager than the one the project uses (e.g., never pip install into a pixi-managed project) — that creates env state divergence the manifest won't track. Read the "Stop conditions" block and emit the Pre-flight checklist as visible text in your response — both are mandatory before issuing any command.

## Facts
- Page: https://tashan.sh/capability/skill-probabl-ai-python-env-manager
- tashan id: skill:probabl-ai/python-env-manager
- Source: https://github.com/probabl-ai/skills
- Type: skill
- Category: devtools
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 97.0
- Freshness: 94.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: BSD-3-Clause
- Official: no

## Install

```sh
cp -r python-env-manager ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-14 by tashan (https://tashan.sh) from public evidence. Scorer s5.