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{"@context":"https://schema.org","@type":"QAPage","mainEntity":{"@type":"Question","name":"smpplib.exceptions.UnknownCommandError: Unknown SMPP command code \"0x2001\"","text":"
Hi. I use python 3.6 and I get this error when sending a delivery report from SMSC.
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Traceback (most recent call last):\n  File \"/usr/local/lib/python3.6/site-packages/smpplib-2.2.1-py3.6.egg/smpplib/client.py\", line 401, in listen\n  File \"/usr/local/lib/python3.6/site-packages/smpplib-2.2.1-py3.6.egg/smpplib/client.py\", line 355, in read_once\n  File \"/usr/local/lib/python3.6/site-packages/smpplib-2.2.1-py3.6.egg/smpplib/client.py\", line 268, in read_pdu\n  File \"/usr/local/lib/python3.6/site-packages/smpplib-2.2.1-py3.6.egg/smpplib/smpp.py\", line 41, in parse_pdu\n  File \"/usr/local/lib/python3.6/site-packages/smpplib-2.2.1-py3.6.egg/smpplib/pdu.py\", line 127, in parse\n  File \"/usr/local/lib/python3.6/site-packages/smpplib-2.2.1-py3.6.egg/smpplib/command.py\", line 315, in parse_params\n  File \"/usr/local/lib/python3.6/site-packages/smpplib-2.2.1-py3.6.egg/smpplib/command.py\", line 333, in parse_optional_params\n  File \"/usr/local/lib/python3.6/site-packages/smpplib-2.2.1-py3.6.egg/smpplib/command.py\", line 71, in get_optional_name\nsmpplib.exceptions.UnknownCommandError: Unknown SMPP command code \"0x2001\"\n
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I also have to respond to this message with the deliver_sm_resp status. But how can I do it? Here is my code
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def received_handler(pdu):\n    lambda pdu: sys.stdout.write('--'.format(pdu.short_message))\n    pdu_body = pdu.short_message\n    pdu_phone = pdu.source_addr\n    sms_1 = 'sms %s' % (pdu_body)\n    logger.info(sms_1)\n    phone_1 = 'phone %s' % (pdu_phone)\n    logger.info(phone_1)\n\ntry:\n    client = smpplib.client.Client(host,port)\n    client.set_message_sent_handler(\n        lambda pdu: sys.stdout.write('sent {} {}\\n'.format(pdu.sequence, pdu.message_id)))\n    client.set_message_received_handler(received_handler)\n    client.connect()\n    client.bind_transceiver(system_id=sys_id, password=pwd)\n\n    client.listen()\nexcept UnknownCommandError as e:\n    logger.error('UnknownCommandError DELIVER SMS')\n    deliver = smpplib.smpp.make_pdu('deliver_sm_resp', client=client)\n    client.send_pdu(deliver)\n    logger.info(\"SEND deliver_sm_resp\")\nexcept Exception as e:\n    client.listen()
","upvoteCount":1,"answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"
Hi @AnnaLupanova 👋
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client.listen() should take care of sending deliver_sm_resp, see 
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\n      python-smpplib/smpplib/client.py\n    
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\n        Lines 372 to 373\n      in\n      7367454\n    
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\n    \n\n        \n          \n          \n        \n\n        \n          \n          \n        \n    
 elif pdu.command == 'deliver_sm': 
     self._message_received(pdu) 
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As for the UnknownCommandError – we're unfortunately unable to handle vendor-specific command codes at the moment. Here's the tracking issue: #105
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","upvoteCount":1,"url":"https://github.com/python-smpplib/python-smpplib/discussions/191#discussioncomment-2191615"}}}