def set_character_set(self, charset):
        """Set the connection character set to charset. The character
        set can only be changed in MySQL-4.1 and newer. If you try
        to change the character set from the current value in an
        older version, NotSupportedError will be raised."""
        if charset == "utf8mb4":
            py_charset = "utf8"
        else:
            py_charset = charset
        if self.character_set_name() != charset:
            try:
                super(Connection, self).set_character_set(charset)
            except __HOLE__:
                if self._server_version < (4, 1):
                    raise NotSupportedError("server is too old to set charset")
                self.query('SET NAMES %s' % charset)
                self.store_result()
        self.string_decoder.charset = py_charset
        self.unicode_literal.charset = py_charset
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/MySQL-python-1.2.5/MySQLdb/connections.py/Connection.set_character_set