Hello
I had an exception "Empty or missing scope not allowed" when running the sample load_data_by_post.
I fixed it by creating the scope after getting credentials :
credentials = GoogleCredentials.get_application_default()
scope = ['https://www.googleapis.com/auth/bigquery']
credentials = credentials.create_scoped(scope)
Regards