How do I install the Setup Python Env skill?

Run npx skillmds add reflex-dev/setup-python-env in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Setup Python Env safe to use?

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Which AI agents work with Setup Python Env?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Setup Python Env free to use?

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Who published Setup Python Env?

reflex-dev (@reflex-dev) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Setup Python Env by reflex-dev — Agent Skill

Name: Setup Python Env
Rating: 4.2 (5 reviews)
Author: reflex-dev

Setup Python Env

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.

reflex-dev dbabcd0 2.0 KB Updated Sep 9, 2026

File contents

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:

If no pyproject.toml exists, initialize one:
```
uv init --bare
```
Create the virtual environment:
```
uv venv .venv
```
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:

Create the virtual environment:
```
python3 -m venv .venv
```
Activate it:
```
source .venv/bin/activate
```
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

---name: setup-python-envdescription: 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.--- # 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: ```bash ls -d .venv 2>/dev/null ``` If `.venv` exists, activate it and skip to **Step 3**. ```bash 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: ```bash uv --version ``` If `uv` is found: 1. If no `pyproject.toml` exists, initialize one: ```bash uv init --bare ``` 2. Create the virtual environment: ```bash uv venv .venv ``` 3. Activate it: ```bash source .venv/bin/activate ``` Skip to **Step 3**. ### Option B: Fall back to `python` / `pip` If `uv` is not available, check the Python version: ```bash 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: ```bash python3 -m venv .venv ``` 2. Activate it: ```bash source .venv/bin/activate ``` 3. Upgrade pip: ```bash pip install --upgrade pip ``` ## Step 3: Install Reflex Check if Reflex is already installed: ```bash pip show reflex 2>/dev/null ``` If Reflex is **not** installed: ### If using `uv`: ```bash uv add reflex ``` ### If using `pip`: ```bash pip install reflex ```

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