test.py

#!/usr/bin/env python

import sys
from time import sleep
from collections import deque
from twisted.internet.defer import Deferred
# from twisted.python import log
# log.startLogging(sys.stdout, setStdout=False)
from trigger.netdevices import NetDevices, NetDevice

# Open connection to two devices.
nd = NetDevices()
dev = nd.find('r1.demo.local')
dev2 = nd.find('arista-sw1.demo.local')
dev.open()
dev2.open()

# Pause due to timing inconsistencies experienced in some devices.
sleep(5)

# Execute some commands
print "Begin example"
r10 = dev2.run_channeled_commands(['show clock', 'show version'])

# Loop until the output of show version on arista-sw1 finishes
while "result" not in dir(r10):
    sys.stdout.write("\rStill waiting on results")
    sys.stdout.flush()
sys.stdout.write("\n")

# Print the output of show version which is the second vector in the results array. 
print "Got results:"
print r10.result[1]

# Perform some action based on the output of arista-sw1's show version
if 'Software image version: 4.12.0-1244667' in r10.result[1]:
    print "{} has eos version 4.12.0-1244667".format(dev2.nodeName)