script to clone youtube playlist

clone_youtube_playlist.py

from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow


flow = InstalledAppFlow.from_client_secrets_file('client_secret.json',
    scopes=['https://www.googleapis.com/auth/youtube'])

flow.run_local_server(port=8080)
credentials = flow.credentials
service = build('youtube', 'v3', credentials=credentials)


playlistId_Source = 'PLevJjgBUYoSOV443dd3oJefLJTnIG-MaI'
playlistId_Target = 'PLY49WLz4biPxLtO8-il3PtvKONGjLnnR_'

response = service.playlistItems().list(
    part='contentDetails',
    playlistId=playlistId_Source,
    maxResults=50
).execute()

playlistItems = response['items']
nextPageToken = response.get('nextPageToken')

while nextPageToken:
    response = service.playlistItems().list(
        part='contentDetails',
        playlistId=playlistId_Source,
        maxResults=50,
        pageToken=nextPageToken
    ).execute()

    playlistItems.extend(response['items'])
    nextPageToken = response.get('nextPageToken')

for video in playlistItems:
    print(video)
    request_body = {
        'snippet': {
            'playlistId': playlistId_Target,
            'resourceId': {
                'kind': 'youtube#video',
                'videoId': video['contentDetails']['videoId']
            }
        }
    }

    service.playlistItems().insert(
        part='snippet',
        body=request_body
    ).execute()