Question

Basically, my question is the same as this but in Python (and GAE), not C#.

Requirements:

• Separate each word by a dash and remove all punctuation (taking into account not all words are separated by spaces.)
• Function takes in a max length, and gets all tokens below that max length. Example: ToSeoFriendly(“hello world hello world”, 14) returns “hello-world”
• All words are converted to lower case.

Answer 1

def ToSeoFriendly(s, maxlen):
    '''Join with dashes, eliminate punction, clip to maxlen, lowercase.

        >>> ToSeoFriendly("The quick. brown4 fox jumped", 14)
        'the-quick-brow'

    '''
    t = '-'.join(s.split())                                # join words with dashes
    u = ''.join([c for c in t if c.isalnum() or c=='-'])   # remove punctation   
    return u[:maxlen].rstrip('-').lower()                  # clip to maxlen

if __name__ == '__main__':
    import doctest
    print doctest.testmod()