Update auth libraries used in example

The oauth2client library is deprecated. This update changes the sample to use the google-auth and google-auth-oauthlib libraries instead.

python/list_broadcasts.py

@@ -1,14 +1,14 @@
 #!/usr/bin/python
 
-import httplib2
+import argparse
 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
@@ -21,74 +21,49 @@
 #   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"
+SCOPES = ['https://www.googleapis.com/auth/youtube.readonly']
+API_SERVICE_NAME = '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
+VALID_BROADCAST_STATUSES = ('all', 'active', 'completed', 'upcoming',)
 
-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))
-
-VALID_BROADCAST_STATUSES = ("all", "active", "completed", "upcoming",)
-
-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()))
+# 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 broadcasts with the specified status.
 def list_broadcasts(youtube, broadcast_status):
-  print "Broadcasts with status '%s':" % broadcast_status
+  print 'Broadcasts with status "%s":' % broadcast_status
 
   list_broadcasts_request = youtube.liveBroadcasts().list(
     broadcastStatus=broadcast_status,
-    part="id,snippet",
+    part='id,snippet',
     maxResults=50
   )
 
   while list_broadcasts_request:
     list_broadcasts_response = list_broadcasts_request.execute()
 
-    for broadcast in list_broadcasts_response.get("items", []):
-      print "%s (%s)" % (broadcast["snippet"]["title"], broadcast["id"])
+    for broadcast in list_broadcasts_response.get('items', []):
+      print '%s (%s)' % (broadcast['snippet']['title'], broadcast['id'])
 
     list_broadcasts_request = youtube.liveBroadcasts().list_next(
       list_broadcasts_request, list_broadcasts_response)
 
-if __name__ == "__main__":
-  argparser.add_argument("--broadcast-status", help="Broadcast status",
+if __name__ == '__main__':
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--broadcast-status', help='Broadcast status',
     choices=VALID_BROADCAST_STATUSES, default=VALID_BROADCAST_STATUSES[0])
-  args = argparser.parse_args()
+  args = parser.parse_args()
 
-  youtube = get_authenticated_service(args)
+  youtube = get_authenticated_service()
   try:
     list_broadcasts(youtube, args.broadcast_status)
   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)