Reverse a String Recursively: Solution

Problem: Reverse a String Recursively
Whiteboard: Medium
Challenge: Easier
Concepts: Recursion, Strings
Download: rev-string-recursively-solution.zip

reverse.py

def rev_string(astring):
    """Return reverse of string using recursion.

    You may NOT use the reversed() function!
    """

    # START SOLUTION

    if len(astring) < 2:
        return astring

    return astring[-1] + rev_string(astring[:-1])