Write boundary lines X1 Y1 X2 Y2 TYPE to file

def write_boundaries(self, filename):
        """
        Write boundary lines X1 Y1 X2 Y2 TYPE to file
        """
        fid = open(filename, 'w')
        for i in self.Boundaries:
            print(i)
            # fid.write('{0} {1} {2}\n'.format(i[0], i[1], i[2]))
            fid.write(
                '{0} {1} {2} {3} {4}\n'.format(
                    i[0][0], i[0][1], i[1][0], i[1][1], i[2]))
        fid.close()