[question] Easiest way (if any) to customize top-level error handling in ptpython repl

[genovese]

I'm running a python repl in an educational context, and I would like to catch top level errors of certain types where I can give more clear and complete guidance (and suppress tracebacks where appropriate). I love what ptpython offers, and I would like to use it here. Is there a relatively simple way to adapt ptpython to customize error handling at the top level of the interactive shell?

If there is no direct way, it looks like modifying/wrapping PythonRepl._handle_exception could work, but perhaps there's a better or simpler way? Or perhaps that won't work at all for some reason? My first thought was to allow an optional kw argument to the PythonRepl constructor that takes a custom error handler and that this handler is tried first, then the current _handle_exception if the former is missing or passes. Sound plausible, or crazy?

Thanks for your help!