MCPInstall

setup-python-env

by reflex-devAI & Agents

Set up a Python virtual environment and install Reflex. Use when initializing a new Reflex project, setting up a development environment, or when the user needs to create a venv and install dependencies. Load when there is no .venv directory, when the user asks to start a new Reflex app, or when imports fail due to missing packages.

Installs
668
Last 24h
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Trending rank
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Security
Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/reflex-dev/agent-skills --skill setup-python-env
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads setup-python-env automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Python Environment Setup for Reflex

This skill handles creating a Python virtual environment and installing Reflex.

Step 1: Check for an existing virtual environment

Look for a .venv directory in the project root:

ls -d .venv 2>/dev/null

If .venv exists, activate it and skip to Step 3.

source .venv/bin/activate

Step 2: Create the virtual environment

If no .venv exists, determine which tools are available.

Option A: uv is available

Check if uv is installed:

uv --version

If uv is found:

  1. If no pyproject.toml exists, initialize one:

    uv init --bare

  2. Create the virtual environment:

    uv venv .venv

  3. Activate it:

    source .venv/bin/activate

Skip to Step 3.

Option B: Fall back to python / pip

If uv is not available, check the Python version:

python3 --version

If the version is older than 3.10, stop and inform the user:

Python 3.10 or newer is required. Please install a more up-to-date version of Python before continuing.

If the version is 3.10 or newer:

  1. Create the virtual environment:

    python3 -m venv .venv

  2. Activate it:

    source .venv/bin/activate

  3. Upgrade pip:

    pip install --upgrade pip

Step 3: Install Reflex

Check if Reflex is already installed:

pip show reflex 2>/dev/null

If Reflex is not installed:

If using uv:

uv add reflex

If using pip:

pip install reflex

FAQ

What does the setup-python-env skill do?

Set up a Python virtual environment and install Reflex. Use when initializing a new Reflex project, setting up a development environment, or when the user needs to create a venv and install dependencies. Load when there is no .venv directory, when the user asks to start a new Reflex app, or when imports fail due to missing packages.

How do I install setup-python-env?

Run npx skills add https://github.com/reflex-dev/agent-skills --skill setup-python-env in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/setup-python-env/ (personal) or .claude/skills/setup-python-env/ (project).

Which AI agents can use setup-python-env?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is setup-python-env safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains setup-python-env?

It is published by reflex-dev in reflex-dev/agent-skills. It has 668 recorded installs.

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