Learning recursion, error message(non-default argument follows default argument) python

Question

Trying to practice learning recursion. The program is designed to go through the list and print out the location of the chosen letter. I also don\'t understand what this error m

Answer 1

The issue is on this line:

get_position(pos = 0,List,letter = 'o')

Notice that you give the List argument, a non-default argument, after default argument pos = 0. This is not allowed. Try reordering your arguments:

get_position(List, pos = 0,letter = 'o')

To understand why this is not allowed, think about this: how would you call get_position and pass in the second argument without passing in the first argument? You can think of some ways a language could support this, such as allowing calls like get_position( , myList), but to my knowledge there is no language that does.