run python code from javascript

Published: 21 January 2024
on channel: CodeTwist

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Running Python code from JavaScript is possible using various methods. One popular approach is to use WebAssembly to execute Python code in a browser environment. In this tutorial, I'll guide you through the process of setting up and running Python code from JavaScript using the Emscripten compiler.
Emscripten SDK: Make sure you have the Emscripten SDK installed. You can follow the installation instructions on the official Emscripten GitHub repository.
Python Code: Prepare a simple Python script that you want to run from JavaScript. For this example, let's use a basic script named example.py.
Use the Emscripten compiler to convert the Python code to WebAssembly. Open a terminal and navigate to the directory containing your Python script. Run the following command:
This command compiles the Python script into WebAssembly and generates a JavaScript file (example.js) that you can use in your HTML file.
Create an HTML file (index.html) to embed the generated JavaScript file and provide an interface for running the Python code from JavaScript.
To avoid any cross-origin issues, serve the HTML file and the generated JavaScript file using a simple web server. You can use Python's built-in HTTP server for this:
Visit http://localhost:8000 in your browser and open the developer console to see the result when you click the "Run Python Code" button.

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