#!/usr/bin/python3
import requests
import json
import logging
ip = 'xxx.xxx.xxx.xxx'
user = 'z'
password = '4321'
login_url = 'https://' + ip + "/restapi/16/authenticate"
login_data = 'data={"username":"' + user + '","password":"'
login_data = login_data + password + '"}'
login_headers = {'Accept':'application/json'}
r = requests.post(login_url, login_data, verify=False, headers=login_headers)
data = r.json()
for item in data:
 if item["status"]!='1':
  continue
 else:
  break
 print('Ok')

if item["status"]=='1':
TypeError: string indices must be integers