frame and fortune

def frame_and_fortune(string):
    retval = ""
    data = string.split()
    tempdat = sorted(data, key=len, reverse=1)
    mval = len(tempdat[0])
    intemp = mval + 4
    retval += "*" * intemp
    retval += "\n"
    for word in data:
        retval += "* {0}{1} *\n".format(word, " "*(mval - len(word)))
    retval += "*" * intemp
    return retval

print frame_and_fortune("This is a test look at how testy i am")