A quick script to add 100 loopback interfaces to a network elemenet, designed to work with Arista EOS eAPI (via JSON RPC) written in python

addLoopbacks.py

#!/usr/bin/python
import argparse
from jsonrpclib import Server

def connect( sIpOrHostname, username, password, secure=True ):
   return Server( "%s://%s:%s@%s/command-api" 
                  % ( "http" if not secure else "https", password, username, sIpOrHostname ) )    
   
def addLoopback( switch, enablePass, intfLo, ipAddr ):
   rc = switch.runCmds( 1, [ { "cmd": "enable", "input": enablePass },
                             "configure",
                             intfLo,
                             ipAddr ] )
   return rc
         
def main():
   parser = argparse.ArgumentParser(description='Provision Loopbacks')
   parser.add_argument( 'sIpOrHostname', help='Switch IP address or Hostname' )
   parser.add_argument( 'username', help='Username' )
   parser.add_argument( 'password', help='Password' ) 
   parser.add_argument( "--http", help="Use unsecure http connection (default is https)",
                       action="store_false", default=True )      
   parser.add_argument( "--enable-password", help="Enable-mode password",
                        default="" )                                   
   args = parser.parse_args()
   
   switch = connect ( args.sIpOrHostname, args.username, args.password, args.http )
   
   intfLo = ""
   ipAddr = ""
   
   for x in range(1,101) :
      intfLo = "interface loopback %s" % (x)
      ipAddr = "ip address 10.10.10.%s/32" % (x)
      addLoopback ( switch, args.enable_password , intfLo, ipAddr ) 

if __name__ == '__main__':
   main()