def wordwrap(text, length=50):
    """                                                                                                                                          
    >>> wordwrap('The.Twelve.Kingdoms.14.Shadow.of.the.Moon.Sea.of.the.Shadow.Shadow.of.the.Moon,.Sea.of.the.Shadow.Chapter.of.Recollection.mkv')
    'The.Twelve.Kingdoms.14.Shadow.of.the.Moon.Sea.of .the.Shadow.Shadow.of.the.Moon,.Sea.of.the.Shadow .Chapter.of.Recollection.mkv'            
                                                                                                                                                 
    >>> wordwrap('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa')    
    'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaa'                
                                                                                                                                                 
    >>> wordwrap('1234567890'*10 + ',blah blah blah' )                                                                                           
    '12345678901234567890123456789012345678901234567890 12345678901234567890123456789012345678901234567890,blah blah blah'                       
    """

    sep = re.compile(r'.{1,%d}$|.{1,%d}\W|.{1,%d}' % (length, length, length), re.M | re.U)
    return " ".join(" ".join(sep.findall(word)) for word in text.split(' '))