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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def ping(self, reconnect=True):
 """ Check if the server is alive. :param reconnect: If the connection is closed, reconnect. :raise Error: If the connection is closed and reconnect=False. """

        if self._sock is None:
            if reconnect:
                self.connect()
                reconnect = False
            else:
                raise err.Error("Already closed")
        try:
            self._execute_command(COMMAND.COM_PING, "")
            self._read_ok_packet()
        except Exception:
            if reconnect:
                self.connect()
                self.ping(False)
            else:
                raise