Reverse a string in Python

Question

There is no built in reverse function for Python\'s str object. What is the best way of implementing this method?

If supplying a very conci

Answer 1

1. using slice notation

def rev_string(s): 
    return s[::-1]

2. using reversed() function

def rev_string(s): 
    return ''.join(reversed(s))

3. using recursion

def rev_string(s): 
    if len(s) == 1:
        return s

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