Using Python in the browser

Snake Charmer

© Photo by Godwin Angeline Benjo on Unsplash

© Photo by Godwin Angeline Benjo on Unsplash

Article from Issue 278/2024
Author(s):

PyScript lets you use your favorite Python libraries on client-side web pages.

While there are some great Python web server frameworks such as Flask, Django, and Bottle, using Python on the server side adds complexity for web developers. To use Python on the web, you also need to support JavaScript on client-side web pages. To address this problem, some Python-to-JavaScript translators, such as JavaScripthon, Js2Py, and Transcrypt, have been developed.

The Brython (which stands for Browser Python) project [1] took the first big step in offering Python as an alternative to JavaScript by offering a Python interpreter written in JavaScript. Brython is a great solution for Python enthusiasts, because it's fast and easy to use. However, it only supports a very limited selection of Python libraries.

PyScript [2] offers a new, innovative solution to the Python-on-a-web-page problem by allowing access to many of the Python Package Index (PyPI) repository libraries. The concept behind PyScript is a little different. It uses Pyodide, which is a Python interpreter for the WebAssembly (Wasm) virtual machine. This approach offers Python within a virtual environment on the web client.

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