Pyground

Pyground is a Python data playground that runs in your browser using Pyodide.

It allows importing a CSV file into a Python editor where it can be freely manipulated using common libraries. A Python editor that outputs a figure to a canvas is also provided. Dates in the document are converted to native Python DateTime objects so that they can be easily manipulated/plotted.

The app is entirely static, never stores your data or sends it anywhere and can be self-hosted anywhere.

Demo

A live version is deployed at https://pyground.vercel.app

Supported import types

• CSV file
• GraphJSON: any collection, any date range.

Deploy

With Vercel:

Pyground is written in NextJS with all pages able to be rendered as static HTML. See NextJS docs for other deployment options

Limitations

• Python runs in the browser using Pyodide so their limitations apply. See in particular https://pyodide.org/en/stable/usage/wasm-constraints.html

• The matplotlib render doesn't work in Safari, and that editor is therefore hidden. This includes all iOS browsers. See https://github.com/pyodide/pyodide/issues/1921

• Your data is loaded in the browser, so the supported size will depend on your machine. You can almost certainly find a CSV file that's too big!

• Currently only packages built in Pyodide are supported, and they're automatically imported when used. There's not yet any support for loading other packages.