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#!/usr/bin/python

# Usage example:

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

import argparse

import os

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

# the OAuth 2.0 information for this application, including its client_id and

# client_secret. You can acquire an OAuth 2.0 client ID and client secret from

# the {{ Google Cloud Console }} at

# {{ https://cloud.google.com/console }}.

# Please ensure that you have enabled the YouTube Data API for your project.

# For more information about using OAuth2 to access the YouTube Data API, see:

# 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_secret.json'

# This OAuth 2.0 access scope allows for full read/write access to the

# authenticated user's account.

SCOPES = ['https://www.googleapis.com/auth/youtube']

API_SERVICE_NAME = 'youtube'

API_VERSION = 'v3'

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, args):

results = youtube.playlists().list(

part='snippet,localizations',

id=args.playlist_id

).execute()

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',

body=playlist

).execute()

# 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, args):

results = youtube.playlists().list(

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']

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 existing localizations

# for the playlist.

def list_playlist_localizations(youtube, args):

results = youtube.playlists().list(

part='snippet,localizations',

id=args.playlist_id

).execute()

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)

elif args.action == 'get':

get_playlist_localization(youtube, args)

elif args.action == 'list':

list_playlist_localizations(youtube, args)

except HttpError, e:

print 'An HTTP error %d occurred:\n%s' % (e.resp.status, e.content)

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