smpp.pdu.pdu_types.DataCodingScheme.GSM_MESSAGE_CLASS very much exists,
and I can prove that manually in the python shell. So let's assume this
is a pylint bug and work around it
pySim/sms.py:72:21: E1101: Instance of 'DataCodingScheme' has no 'GSM_MESSAGE_CLASS' member (no-member)
Change-Id: Iab34bae06940fecf681af9f45b8657e9be8cbc7b
This introduces a hierarchy of classes implementing
* ETS TS 102 225 (general command structure)
* 3GPP TS 31.115 (dialects for SMS-PP)
In this initial patch only the SMS "dialect" is supported,
but it is foreseen that USSD/SMSCB/HTTPS dialects can be
added at a later point.
Change-Id: I193ff4712c8503279c017b4b1324f0c3d38b9f84