Consider codeskulptor[0] out of Rice University, I used it for a coursera class a decade ago (think it was this one[1])

[0]: https://py3.codeskulptor.org/

[1]: https://www.coursera.org/learn/interactive-python-1

Wow! This is actually exactly what I wanted, thank you!

Our classes were shut down at the start of COVID-19 in March 2020, but if we ever actually go again, I will definitely use this!