I'd begin with questions: what did you program in C and script in Python and shell? Which shell was that and why? How much interaction with the os did it involve? Do you think it was a good tool for what you did? Did you miss some functionality? What would make it better, easier, more appropriate for the task? About C: what libraries did you use and why? What compiler? This should give you an overview of who you're dealing with.

Excellent - thank you

These give me lots of ideas of how to proceed :)