Fix syntax error (pypa#372)

kennethreitz · Jon Wayne Parrott · commit ac759e66b2ed · 2017-08-31T12:57:57.000-07:00
diff --git a/source/new-tutorials/installing-and-using-packages.rst b/source/new-tutorials/installing-and-using-packages.rst
@@ -154,7 +154,7 @@ use it:
 
     response = requests.get('https://httpbin.org/ip')
 
-    print('Your IP is {0}'.format(response.json['origin']))
+    print('Your IP is {0}'.format(response.json()['origin']))
 
 Then you can run this script using ``pipenv run``:
 
