python

python is a skill for Claude Code, Codex from dhaupin/vant. It costs 6 tokens per session (343 once invoked), scanned A, original, MIT.

A guide for managing Python project packages and isolated environments. It covers pip, uv, Poetry, Pipenv, virtual environments, and common project files such as requirements.txt and pyproject.toml.

In plain words
What is it for?
Use it to install, sync, record, build, or run Python packages and create environments with venv or conda.
Why use it?
It helps choose the appropriate package tool and keep project dependencies separate from other Python projects.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to install, sync, record, build, or run Python packages and create environments with venv or conda.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dhaupin/vant/vant-skill-python
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add dhaupin/vant --skill vant-skill-python
Clone the repo
git clone --depth 1 https://github.com/dhaupin/vant

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for python

README.md
[![agentmods](https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-python/github.svg)](https://agentmods.dev/skills/dhaupin/vant/vant-skill-python)
Your own site
<a href="https://agentmods.dev/skills/dhaupin/vant/vant-skill-python"><img src="https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-python/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for python

Your own site · 80×15
<a href="https://agentmods.dev/skills/dhaupin/vant/vant-skill-python"><img src="https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-python.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 6 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 343 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00006 $0.00343
Opus 5.5 $0.00002 $0.00137
Sonnet 5.5 $0.00001 $0.00069
Haiku 4.5 $0.00001 $0.00034

Measured 1mo ago against content hash 27b341c852e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

python scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

models/public/vant/skills/vant-skill-python/SKILL.md · 95 lines

What it actually says

Python

Python package management.


When To Use

  • Python projects
  • requirements.txt
  • pyproject.toml
  • .venv present

What To Do

1. Tools

Tool Use
pip Default package manager
uv Fast package manager
poetry Project management
pipenv Pip + virtualenv

2. Pip Commands

pip install requests
pip install -r requirements.txt
pip freeze > requirements.txt

3. UV Commands

uv add requests
uv venv
uv sync
uv run python main.py

4. Poetry Commands

poetry add requests
poetry install
poetry run python main.py
poetry build

5. Virtual Environments

# venv
python -m venv .venv
source .venv/bin/activate

# conda
conda create -n myenv python=3.11
conda activate myenv

Output

## Python

| Package | Version | Tool |
|---------|---------|------|
| [name] | [version] | [pip/uv/poetry] |

### Environment
- [tool]

Role: Python Developer
Input: requirements.txt / pyproject.toml
Output: Dependencies

Python packages.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 95 lines · 6 tokens per session scan A 27b341c852e8

Subscribe to this mod's changes

python is a skill published in the GitHub repository dhaupin/vant (11 stars, last pushed today), licensed MIT. It adds 6 tokens to every session and 343 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.