https://github.com/404background/node-red-contrib-pyodide

Node to execute Python code with Pyodide in Node-RED
https://github.com/404background/node-red-contrib-pyodide

Last synced: 5 months ago
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Node to execute Python code with Pyodide in Node-RED

• Host: GitHub
• URL: https://github.com/404background/node-red-contrib-pyodide
• Owner: 404background
• License: mpl-2.0
• Created: 2025-06-11T07:43:26.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-06-19T12:29:59.000Z (about 1 year ago)
• Last Synced: 2025-12-14T00:49:14.392Z (7 months ago)
• Language: HTML
• Size: 162 KB
• Stars: 2
• Watchers: 0
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# node-red-contrib-pyodide

A Node-RED node that allows you to execute Python code using Pyodide.

## Overview

This node brings the power of Python to Node-RED without requiring a separate Python installation. It uses Pyodide to run Python code directly in the Node.js environment.

## Features

- ✨ Execute Python code directly in Node-RED

- 🔧 No Python installation required

- 🌐 Web-based Python using WebAssembly (Pyodide)

- � Automatic Python package loading (numpy, matplotlib, pandas, etc.)

- �🔄 Seamless integration with Node-RED message flow

## Usage

You can execute Python code with Pyodide.  

The sample flow demonstrates basic usage of the pyodide node with an inject node and debug node.

![Sample Flow](images/flows.png)

![Pyodide Node](images/pyodide.png)

For example, You can use matplotlib in the pyodide node to generate graphs and pass them to the next node for display. The pyodide-config node loads the matplotlib package automatically.

![Matplotlib Node](images/matplotlib-node.png)

![Pyodide Config Node](images/pyodide-config.png)

![Matplotlib Flow](images/matplotlib.png)

# Others

Using Pyodide Part 1 (Execute in Browser)  

Using Pyodide Part 2 (Execute with Node.js)  

My Node: python-venv node