Comment by loeg

> Python doesn't have a built-in way to run untrusted code safely. Multiple attempts have been made, but none really succeeded.

Long, long ago, there was "repy"[1][2]. (This is definitely included in the "none succeeded" bucket, FWIW.)

[1]: https://github.com/SeattleTestbed/repy_v2

[2]: https://dl.acm.org/doi/10.1145/1866307.1866332