#!/usr/bin/python
import subprocess
cmd = '/usr/bin/dscl', '.', 'list', '/Users'
task = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(out, err) = task.communicate()
allusers = (out).split()
nonsyss = []
syss = ['jssadmin', 'root', 'puppet', 'daemon', 'nobody', 'Guest', 'jenkins']
for user in allusers:
    if (not user[0] == '_') and (user not in syss):
        nonsyss.append(user)
print nonsyss