i want to send snmp trap using pysnmp library for database(postgresql). like when database goes down send a trap, similarly for when database goes up send another trap.
so now my question is how to define or create my own MIB file for the same in python.
thanks in advance
You may not absolutely require a MIB if all you want to do is to send SNMP TRAP. But I do not really know your requirements. Why do you think you need a MIB? Is it that you run some sort of NMS on the receiving side that requires MIB to analyse the event?
What you could do without MIB is to chose TRAP message contents that sufficiently describe the event using just OID-value pairs (e.g. required TRAP message contents + possibly OID-value pairs), then have the receiver of the TRAP analyse it accordingly.
If you still need a MIB, then you could just create one in your text editor. Take one of the existing MIBs as an example. You may test-compile it with mibdump.py to catch possible syntax errors. Once you are done, refer pysnmp to your TRAP object in the MIB so pysnmp which would compile and use it.