ApiRest Sys connections python

import re
import subprocess

p1 = subprocess.Popen([
        'curl',
        '-sk',
        '-u',
        'admin:admin',
        '-H','Content-Type: application/json',
        '-H','Accept: application/json',
        '-X','GET',
        'https://x.x.x.x/mgmt/tm/sys/connection'
],stdout=subprocess.PIPE)


p2 = subprocess.Popen([
        'perl',
        '-pe',
        '\'s/\\n/,\n/g\''
],stdin=p1.stdout,stdout=subprocess.PIPE)


result = str(p2.communicate()).split('\\n')

for line in result:
        if re.search('^[0-9].*', line) is not None:
                ip = line.split(" ")
                print ip[0]