ANSI Escape sequences
            http://ascii-table.com/ansi-escape-sequences.php

def position(self, x, y, text):
        """
            ANSI Escape sequences
            http://ascii-table.com/ansi-escape-sequences.php
        """
        sys.stdout.write("\x1b7\x1b[%d;%df%s\x1b8" % (x, y, text))
        sys.stdout.flush()