When my Python 3 crashes:
- animation fails to show
- error messages are discarded, unless they happen after output
- test case keeps its color (blue if never run before, red if failed before, green with “not up to date” flag otherwise)
Sometimes, the animation stops to run completely, including on correct outputs. I have not yet isolated this case.
This makes it very hard to debug even trivial errors mike a misspelled variable.