[znt]

Jupyter online test page, no login: https://jupyter.org/try-jupyter/retro/notebooks/?path=notebo...

Online python REPL, no login: https://replit.com/languages/python3

Another generic online REPL service, with pandas example, no login: https://onecompiler.com/python/3x7an28pr

ReactJS online playground, no login: https://playcode.io/react