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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"TAG: its_session_info, struct.error: required argument is not an integer","articleBody":"Hi, I am using python3.6\r\nUsing this chunk of code\r\n```\r\nparts, encoding_flag, msg_type_flag = smpplib.gsm.make_parts(u'Привет мир!\\n'*1)\r\nr_pdu = client.send_message(\r\n        source_addr_ton=smpplib.consts.SMPP_TON_INTL,\r\n        #source_addr_npi=smpplib.consts.SMPP_NPI_ISDN,\r\n        # Make sure it is a byte string, not unicode:\r\n        source_addr='******',\r\n        service_type =\"USSD\",\r\n        ussd_service_op = 0x11,\r\n\r\n        its_session_info =b'\\x00\\x01',\r\n        dest_addr_ton=smpplib.consts.SMPP_TON_INTL,\r\n        #dest_addr_npi=smpplib.consts.SMPP_NPI_ISDN,\r\n        # Make sure thease two params are byte strings, not unicode:\r\n        #Test Code\r\n        destination_addr='******',\r\n        short_message=parts[0],\r\n\r\n        data_coding=encoding_flag,\r\n        esm_class=msg_type_flag,\r\n        registered_delivery=True,\r\n    )\r\n```\r\n\r\nGetting this:\r\n\r\n```\r\nTraceback (most recent call last):\r\n  File \"main.py\", line 77, in \u003cmodule\u003e\r\n    client.listen()\r\n  File \"/home/pythonsmpp/smpplib/client.py\", line 343, in listen\r\n    self.read_once(ignore_error_codes, auto_send_enquire_link)\r\n  File \"/home/pythonsmpp/smpplib/client.py\", line 315, in read_once\r\n    self._message_received(pdu)\r\n  File \"/home/pythonsmpp/smpplib/client.py\", line 244, in _message_received\r\n    status = self.message_received_handler(pdu=pdu)\r\n  File \"main.py\", line 31, in deliver_sm\r\n    registered_delivery=True,\r\n  File \"/home/pythonsmpp/smpplib/client.py\", line 357, in send_message\r\n    self.send_pdu(ssm)\r\n  File \"/home/pythonsmpp/smpplib/client.py\", line 181, in send_pdu\r\n    generated = p.generate()\r\n  File \"/home/pythonsmpp/smpplib/pdu.py\", line 136, in generate\r\n    body = self.generate_params()\r\n  File \"/home/pythonsmpp/smpplib/command.py\", line 126, in generate_params\r\n    value = self._generate_int_tlv(field)\r\n  File \"/home/pythonsmpp/smpplib/command.py\", line 202, in _generate_int_tlv\r\n    value = struct.pack(\"\u003eHH\" + fmt, field_code, field_length, data)\r\nstruct.error: required argument is not an integer\r\nWARNING:smpp.Client.139658711658224:\u003csmpplib.client.Client object at 0x7f04d3e5eef0\u003e was not closed\r\n```\r\nCould you help me?\r\n\r\nThanks in advance..","author":{"url":"https://github.com/drhidians","@type":"Person","name":"drhidians"},"datePublished":"2020-03-20T11:29:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/112/python-smpplib/issues/112"}