Not able to print specifc hostnames from network-device

 While running this code getting error "TypeError: string indices must be integers"

import requests

import json

import sys

requests.packages.urllib3.disable_warnings()

url = "https://devnetapi.cisco.com/sandbox/apic_em/api/v1/ticket"

payload = {"username":"devnetuser","password":"Cisco123!"}

header = {"content-type":"application/json"}

output = requests.post(url,data=json.dumps(payload),headers=header,verify=False)

response_json = output.json()

ST = response_json['response']['serviceTicket']

headers = {"X-Auth-Token": ST}

ip = "https://devnetapi.cisco.com/sandbox/apic_em/api/v1/network-device"

response1 = requests.get(ip,headers=headers,verify=False)

network_Devices = response1.json()

#print(json.dumps(network_Devices,indent=4))

devices_list = []

for item in network_Devices:

    devices_list.append([item["hostname"],item["managementIpAddress"],item["type"],item["id"]])

print (devices_list)

The response JSON from requests.get(ip,headers=headers,verify=False) is

{

    "response": [

        {

            "apManagerInterfaceIp": "",

            "type": "Cisco Catalyst 2960C-8PC-L Switch",

            "upTime": "1 day, 2:20:31.50",

            "locationName": null,

            "memorySize": "59556224",

            "lastUpdateTime": 1467837623914,

 We actually just need everything inside "response":[

....

 So we use "network_Devices = response1.json()["response"]" instead.

 print(json.dumps(response1.json(),indent=4))

network_Devices = response1.json()["response"]

 print(json.dumps(network_Devices,indent=4))

 devices_list = []

 for item in network_Devices:

    devices_list.append([item["hostname"],item["managementIpAddress"],item["type"],item["id"]])

 print (devices_list)

 To print network device list in pretty format please refer to this learning lab session

Cisco DevNet Learning Labs -Lab 2: Network Device Related APIs