ps9_revised

def __str__(self):
        """
        Return the string representation for a set, which consists of
        the string representation of each shape, categorized by type
        (circles, then squares, then triangles)
        """
        templist = []
        shapeslist = self.shapes

        for shape in shapeslist:
            templist.append(shape.__str__())
        for string in templist:
            splitstring = string.split()
        # in order to replicate handout results, I sorted by first word only.
        # def first(splitstring): return splitstring[0] same as key = lambda:
        splitsorted = sorted(templist, key=lambda splitstring: splitstring[0])
        print splitsorted
        return'\n'.join(splitsorted)