Example of polling an interface for statistics in eAPI and Python

poll.py

from jsonrpclib import Server
import time

username = "fredlhsu"
password = "arista"
host = "172.22.28.37"

def getInterfaceStats():
    dictionary = eApiCall()
    interfaces = []
    response = ""
    for i in range(1,5):
        name = "Ethernet{}".format(i)
        intf = {"name":name, "stats":dictionary["interfaces"][name]["interfaceStatistics"]}
        interfaces.append(intf)

    return interfaces

def eApiCall():
    switch = Server( "http://{}:{}@{}/command-api".format(username, password, host))
    response = switch.runCmds( 1, ["show interfaces"] )
    return response[0]

if __name__ == '__main__':
    sleepTime = 1
    while True:
        time.sleep(sleepTime)
        print getInterfaceStats()