[almostgotcaught]

> Lisp and Smalltalk addressed this by not unwinding the stack on exceptions, dropping you into a debugger and allowing you to fix the error and resume execution without having to restart your program from the beginning. Eventually I'd like to patch CPython to support this

yea i've been meaning to do this for a while as well...

[sczi]

I haven't started really looking into it yet, but I found this blog that looks like a good description of what exactly happens during stack unwinding in python and gets a large part of the way to resuming execution in pure python without even any native code: https://web.archive.org/web/20250322090310/https://code.lard...

Though the author says they wrote it as a joke and probably it is not possible to do robustly in pure python, but I assume it can be done robustly as a patch to CPython or possibly even as just a native C extension that gets loaded without people needing a patched build of CPython. If you know any good resources or information about how to approach this, or start working on it yourself, let me know.