Mozilla would like to see the JavaScript data science ecosystem move forward, but bringing a mature Python scientific stack to the browser will be useful in the meantime.

PyScript lets you run Python scripts right in the browser, side by side with JavaScript, with two-way interaction between your code and the web page.

PyScript, which is, of course, Python in the browser. The tool is in the early experimental phase, so the project doesn’t suggest using it in a production environment yet.

Guido van Rossum, the creator of the hugely popular Python programming language, has given his thoughts on the language for the browser, mobile devices, and upcoming rivals like Julia.

Python isn't the only option for programming machine learning applications: there’s a growing group of developers who use JavaScript to run machine learning models.

Microsoft plans to enable the Python and Ruby languages to be used for client-side development of rich Internet applications that leverage the companyu2019s Silverlight browser plug-in technology.

It's possible to take a step further with a browser extension, but this is a basic Python project that hosts a web page that you can drag and drop a file on for a visualizer.

Widely-used Python has now overtaken JavaScript as the programming language developers are most likely to have questions about on knowledge-sharing site Stack Overflow.