get_google_service.py

def get_service(secrets_path, service_scope, service_build, service_version):
    credentials = ServiceAccountCredentials.from_json_keyfile_name(
        secrets_path, 
        scopes= service_scope
    )
    service = build(
        service_build,
        service_version,
        http=credentials.authorize(Http()),
        cache_discovery=False
    )
    return service

# https://developers.google.com/identity/protocols/googlescopes