python coding for interviews question

reverse.py

"""Returns the sentence with the order of the words reversed,

 Coding for Interviews contains too many gifs. ->
 gifs. many too contains Interviews for Coding
"""

def reverse_space_n(s):
    rev = s.split(' ')
    print ' '.join(rev[::-1])


def reverse_space_one(s):
    outer_i = 0
    outer_j = len(s)

    while(outer_i < outer_j):
        # Find the spaces
        for i in range(outer_i, len(s)):
            if s[i] == ' ':
                break

        for j in range(outer_j, 0, -1):
            if s[j-1] == ' ':
                break
        # If i and j have found the same word (happens on odd number of words) then stop
        if i > j:
            break;

        # Swap the words round while maintaining the order of the rest of 's'
        s = s[0:outer_i] + s[j:outer_j] + s[i:j] + s[outer_i:i] + s[outer_j:]

        # Move the outer markers in by one word.
        outer_i, outer_j = outer_i + (outer_j - j), outer_j - (i - outer_i)
        outer_i += 1
        outer_j -= 1

    print s


reverse_space_n('Coding for Interviews contains too many gifs.')
reverse_space_one('Coding for Interviews contains too many gifs.')