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

In addition, the code now has more flexible support for command-line arguments. For example, it does not set a default language by default ... you need to specify that on the command line. In addition, you can now add a localization without setting a default language or set a default language without adding a localization. (You cannot add localizations if the playlist doesn't have a default language at all, but once it does have a default language, you do not need to set it every subsequent time you run the script.)
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@AndyDiamondstein
AndyDiamondstein committed Oct 27, 2017
1 parent 2fa8d26 commit f1b9f38
Showing 1 changed file with 122 additions and 111 deletions.
233 changes: 122 additions & 111 deletions python/playlist_localizations.py
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@@ -1,17 +1,16 @@
#!/usr/bin/python

# Usage example:
# python playlist_localizations.py --action='<action>' --playlist_id='<playlist_id>' --defaultlanguage='<default_language>' --language='<language>' --title='<title>' --description='<description>'
# python playlist_localizations.py --action='<action>' --playlist_id='<playlist_id>' --default_language='<default_language>' --language='<language>' --title='<title>' --description='<description>'

import httplib2
import argparse
import os
import sys

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
Expand All @@ -25,142 +24,154 @@
# 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 full read/write access to the
# authenticated user's account.
YOUTUBE_READ_WRITE_SCOPE = "https://www.googleapis.com/auth/youtube"
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 APIs Console
https://console.developers.google.com
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))
SCOPES = ['https://www.googleapis.com/auth/youtube']
API_SERVICE_NAME = 'youtube'
API_VERSION = 'v3'

# Authorize the request and store authorization credentials.
def get_authenticated_service(args):
flow = flow_from_clientsecrets(CLIENT_SECRETS_FILE, scope=YOUTUBE_READ_WRITE_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()))
ACTIONS = ('get', 'list', 'set')

# 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)

# Call the API's playlists.update method to update an existing playlist's default language,
# localized title and description in a specific language.
def set_playlist_localization(youtube, playlist_id, default_language, language, title, description):
def set_playlist_localization(youtube, args):

results = youtube.playlists().list(
part="snippet,localizations",
id=playlist_id
part='snippet,localizations',
id=args.playlist_id
).execute()

playlist = results["items"][0]
# Ensure that a value is set for the resource's snippet.defaultLanguage property.
playlist["snippet"]["defaultLanguage"] = default_language
if "localizations" not in playlist:
playlist["localizations"] = {}
playlist["localizations"][language] = {
"title": title,
"description": description
}

playlist = results['items'][0]

# If the language argument is set, set the localized title and description
# for that language. The "title" and "description" arguments have default
# values to make the script simpler to run as a demo. In an actual app, you
# would likely want to set those arguments also.
if args.language and args.language != '':
if 'localizations' not in playlist:
playlist['localizations'] = {}

playlist['localizations'][args.language] = {
'title': args.title,
'description': args.description
}

# If the default language is set AND there is localized metadata for that
# language, set the video's title and description to match the localized
# title and description for the newly set default language.
if args.default_language:
playlist['snippet']['defaultLanguage'] = args.default_language
if args.default_language in playlist['localizations']:
playlist['snippet']['title'] = (
playlist['localizations'][args.default_language]['title'])
playlist['snippet']['description'] = (
playlist['localizations'][args.default_language]['description'])

print(playlist)

# Update the playlist resource
update_result = youtube.playlists().update(
part="snippet,localizations",
part='snippet,localizations',
body=playlist
).execute()

localization = update_result["localizations"][language]

print ("Updated playlist '%s' default language to '%s', localized title to '%s'"
" and description to '%s' in language '%s'"
% (playlist_id, localization["title"], localization["description"], language))

# Print the actions taken by running the script.
if args.language:
for language in update_result['localizations']:
# Languages with locales, like "pt-br" are returned as pt-BR in metadata.
# This ensures that the language specified when running the script can be
# matched to the language returned in the metadata.
if language.lower() == args.language.lower():
localization = update_result['localizations'][args.language]
print ('Updated playlist \'%s\' localized title to \'%s\''
' and description to \'%s\' in language \'%s\'' %
(args.playlist_id,
localization['title'],
localization['description'],
args.language))
break

if (args.default_language and
args.default_language == update_result['snippet']['defaultLanguage']):
print 'Updated default language to %s' % args.default_language

# Call the API's playlists.list method to retrieve an existing playlist localization.
# If the localized text is not available in the requested language,
# this method will return text in the default language.
def get_playlist_localization(youtube, playlist_id, language):
def get_playlist_localization(youtube, args):
results = youtube.playlists().list(
part="snippet",
id=playlist_id,
hl=language
part='snippet',
id=args.playlist_id,
hl=args.language
).execute()

# The localized object contains localized text if the hl parameter specified
# a language for which localized text is available. Otherwise, the localized
# object will contain metadata in the default language.
localized = results["items"][0]["snippet"]["localized"]
localized = results['items'][0]['snippet']['localized']

print ("Playlist title is '%s' and description is '%s' in language '%s'"
% (localized["title"], localized["description"], language))
print ('Playlist title is "%s" and description is "%s" in language "%s"'
% (localized['title'], localized['description'], args.language))


# Call the API's playlists.list method to list the existing playlist localizations.
def list_playlist_localizations(youtube, playlist_id):
# Call the API's playlists.list method to list existing localizations
# for the playlist.
def list_playlist_localizations(youtube, args):
results = youtube.playlists().list(
part="snippet,localizations",
id=playlist_id
part='snippet,localizations',
id=args.playlist_id
).execute()

localizations = results["items"][0]["localizations"]

for language, localization in localizations.iteritems():
print ("Playlist title is '%s' and description is '%s' in language '%s'"
% (localization["title"], localization["description"], language))


if __name__ == "__main__":
# The "action" option specifies the action to be processed.
argparser.add_argument("--action", help="Action")
# The "playlist_id" option specifies the ID of the selected YouTube playlist.
argparser.add_argument("--playlist_id",
help="ID for playlist for which the localization will be applied.")
# The "default_language" option specifies the language of the playlist's default metadata.
argparser.add_argument("--default_language", help="Default language of the playlist to update.",
default="en")
# The "language" option specifies the language of the localization that is being processed.
argparser.add_argument("--language", help="Language of the localization.", default="de")
# The "title" option specifies the localized title of the playlist to be set.
argparser.add_argument("--title", help="Localized title of the playlist to be set.",
default="Localized Title")
# The "description" option specifies the localized description of the playlist to be set.
argparser.add_argument("--description", help="Localized description of the playlist to be set.",
default="Localized Description")

args = argparser.parse_args()

if not args.playlist_id:
exit("Please specify playlist id using the --playlist_id= parameter.")

youtube = get_authenticated_service(args)
if 'localizations' in results['items'][0]:
localizations = results['items'][0]['localizations']

for language, localization in localizations.iteritems():
print ('Playlist title is "%s" and description is "%s" in language "%s"'
% (localization['title'], localization['description'], language))
else:
print 'There aren\'t any localizations for this playlist yet.'


if __name__ == '__main__':
parser = argparse.ArgumentParser()
# The action to be processed: 'get', 'list', and 'set' are supported.
parser.add_argument('--action', required=True, help='Action', choices=ACTIONS)
# The ID of the selected YouTube olaylist.
parser.add_argument('--playlist_id',
help='The playlist ID for which localizations are being set or retrieved.',
required=True)
# The langauge of the playlist's default metadata.
parser.add_argument('--default_language',
help='Default language to set for the playlist.')
# The language of the localization that is being set or retrieved.
parser.add_argument('--language', help='Language of the localization.')
# The localized title to set in the specified language.
parser.add_argument('--title',
help='Localized title to be set for the playlist.',
default='Localized Title')
# The localized description to set in the specified language.
parser.add_argument('--description',
help='Localized description to be set for the playlist.',
default='Localized Description')

args = parser.parse_args()

youtube = get_authenticated_service()

try:
if args.action == 'set':
set_playlist_localization(youtube, args.playlist_id, args.default_language, args.language, args.title, args.description)
set_playlist_localization(youtube, args)
elif args.action == 'get':
get_playlist_localization(youtube, args.playlist_id, args.language)
get_playlist_localization(youtube, args)
elif args.action == 'list':
list_playlist_localizations(youtube, args.playlist_id)
else:
exit("Please specify a valid action using the --action= parameter.")
list_playlist_localizations(youtube, args)
except HttpError, e:
print "An HTTP error %d occurred:\n%s" % (e.resp.status, e.content)
else:
print "Set and retrieved localized metadata for a playlist."
print 'An HTTP error %d occurred:\n%s' % (e.resp.status, e.content)

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