Update auth libraries used in example

AndyDiamondstein · web-flow · commit f058c43383fb · 2017-10-20T12:41:40.000-04:00
The oauth2client library is deprecated. This update changes the sample to use the google-auth and google-auth-oauthlib libraries instead.
diff --git a/python/list_streams.py b/python/list_streams.py
@@ -1,14 +1,13 @@
 #!/usr/bin/python
 
-import httplib2
 import os
-import sys
+import re
 
-from apiclient.discovery import build
-from apiclient.errors import HttpError
-from oauth2client.client import flow_from_clientsecrets
-from oauth2client.file import Storage
-from oauth2client.tools import argparser, run_flow
+import google.oauth2.credentials
+import google_auth_oauthlib.flow
+from googleapiclient.discovery import build
+from googleapiclient.errors import HttpError
+from google_auth_oauthlib.flow import InstalledAppFlow
 
 
 # The CLIENT_SECRETS_FILE variable specifies the name of a file that contains
@@ -21,71 +20,43 @@
 #   https://developers.google.com/youtube/v3/guides/authentication
 # For more information about the client_secrets.json file format, see:
 #   https://developers.google.com/api-client-library/python/guide/aaa_client_secrets
-CLIENT_SECRETS_FILE = "client_secrets.json"
+CLIENT_SECRETS_FILE = 'client_secret.json'
 
 # This OAuth 2.0 access scope allows for read-only access to the authenticated
 # user's account, but not other types of account access.
-YOUTUBE_READONLY_SCOPE = "https://www.googleapis.com/auth/youtube.readonly"
-YOUTUBE_API_SERVICE_NAME = "youtube"
-YOUTUBE_API_VERSION = "v3"
-
-# This variable defines a message to display if the CLIENT_SECRETS_FILE is
-# missing.
-MISSING_CLIENT_SECRETS_MESSAGE = """
-WARNING: Please configure OAuth 2.0
-
-To make this sample run you will need to populate the client_secrets.json file
-found at:
-
-   %s
-
-with information from the {{ Cloud Console }}
-{{ https://cloud.google.com/console }}
-
-For more information about the client_secrets.json file format, please visit:
-https://developers.google.com/api-client-library/python/guide/aaa_client_secrets
-""" % os.path.abspath(os.path.join(os.path.dirname(__file__),
-                                   CLIENT_SECRETS_FILE))
-
-def get_authenticated_service(args):
-  flow = flow_from_clientsecrets(CLIENT_SECRETS_FILE,
-    scope=YOUTUBE_READONLY_SCOPE,
-    message=MISSING_CLIENT_SECRETS_MESSAGE)
-
-  storage = Storage("%s-oauth2.json" % sys.argv[0])
-  credentials = storage.get()
-
-  if credentials is None or credentials.invalid:
-    credentials = run_flow(flow, storage, args)
-
-  return build(YOUTUBE_API_SERVICE_NAME, YOUTUBE_API_VERSION,
-    http=credentials.authorize(httplib2.Http()))
-
+SCOPES = ['https://www.googleapis.com/auth/youtube.readonly']
+API_SERVICE_NAME = 'youtube'
+API_VERSION = 'v3' 
+
+# Authorize the request and store authorization credentials.
+def get_authenticated_service():
+  flow = InstalledAppFlow.from_client_secrets_file(CLIENT_SECRETS_FILE, SCOPES)
+  credentials = flow.run_console()
+  return build(API_SERVICE_NAME, API_VERSION, credentials = credentials)
+  
 # Retrieve a list of the liveStream resources associated with the currently
 # authenticated user's channel.
 def list_streams(youtube):
-  print "Live streams:"
+  print 'Live streams:'
 
   list_streams_request = youtube.liveStreams().list(
-    part="id,snippet",
+    part='id,snippet',
     mine=True,
     maxResults=50
-  )
-
+  ) 
+    
   while list_streams_request:
     list_streams_response = list_streams_request.execute()
-
-    for stream in list_streams_response.get("items", []):
-      print "%s (%s)" % (stream["snippet"]["title"], stream["id"])
-
+  
+    for stream in list_streams_response.get('items', []):
+      print '%s (%s)' % (stream['snippet']['title'], stream['id'])
+    
     list_streams_request = youtube.liveStreams().list_next(
       list_streams_request, list_streams_response)
-
-if __name__ == "__main__":
-  args = argparser.parse_args()
-
-  youtube = get_authenticated_service(args)
+    
+if __name__ == '__main__':
+  youtube = get_authenticated_service()
   try:
     list_streams(youtube)
   except HttpError, e:
-    print "An HTTP error %d occurred:\n%s" % (e.resp.status, e.content)
+    print 'An HTTP error %d occurred:\n%s' % (e.resp.status, e.content)
