hdresearch/mcp-python

This MCP server provides a Python REPL (Read-Eval-Print Loop) as a tool. It allows execution of Python code through the MCP protocol with a persistent session.
## Setup
No setup needed! The project uses uv for dependency management.
## Running the Server
Simply run:
bash
uv run src/python_repl/server.py
## Usage with Claude Desktop
Add this configuration to your Claude Desktop config file:
json
"mcpServers": {
"python-repl": {
"command": "uv",
"args": [
"--directory",
"/absolute/path/to/python-repl-server",
"run",
"mcp_python"
The server provides three tools:
1. execute_python: Execute Python code with persistent variables
code: The Python code to execute
reset: Optional boolean to reset the session
2. list_variables: Show all variables in the current session
3. install_package: Install a package from pypi
## Examples
Set a variable:
python
a = 42
Use the variable:
python
print(f"The value is {a}")
List all variables:
python
# Use the list_variables tool
Reset the session:
python
# Use execute_python with reset=true
## Contributing
Contributions are welcome! Please feel free to submit a Pull Request. Here are some ways you can contribute:
Report bugs
Suggest new features
Improve documentation
Add test cases
Submit code improvements
Before submitting a PR, please ensure:
1. Your code follows the existing style
2. You've updated documentation as needed
3. Maybe write some tests?
For major changes, please open an issue first to discuss what you would like to change.