Another case where constraints violations is a problem. I'm walking FCMGMT-MIB::connUnitPortTable...
Build Message for part of an array or ByteBuffer
I made some more test, I think my pasted line for net-snmp was wrong, it returned...
pysnmp fails on some HOST-RESOURCES-MIB:hrStorageAllocationUnits and net-snmp succed
Works for me.
Darwin XXXX 14.3.0 Darwin Kernel Version 14.3.0: Mon Mar 23 11:59:05 PDT 2015; root:xnu-2782.20.48~5/RELEASE_X86_64...