code: def get_first(self):
  		
  		try: # Nested try..except because of Python 2.4
  			self.lock.acquire()
  			try:
  				return self.get(self.data_idx[0])
  			except (IndexError, ValueError):
  				return "NONE"
  		finally:
  			self.lock.release()
docs: Return snmp value for the first OID.