json用python解析

我试着解析这个小json,我想拿这个数字:

{ "农布雷":18747}

我尝试:

import urllib.request
request = urllib.request.Request("http://myurl.com")
response = urllib.request.urlopen(request)
print (response.read().decode('utf-8')) //print ->  {"nombre":18747}

import json
json = (response.read().decode('utf-8'))
json.loads(json)

但是我有:

Traceback (most recent call last):
  File "", line 1, in 
    json.loads('json')
AttributeError: 'str' object has no attribute 'loads'

有帮助吗？