Fatal Python error: Cannot recover from stack overflow. In python

Question

I was trying to make my own terminal and when I was adding the feature to make your own functions and use them I got this error:

Fatal Python error: Cannot recover from stack overflow.

EDIT: For everyone looking for help with a similar error, this problem is caused by a function calling itself too many times. That causes an error because python is so far deep into running the function over and over and over again.