Estoy usando el código predeterminado proporcionado por Google aquí , y no entiendo muy bien por qué no funciona. El código genera el mensaje Please visit this URL to authorize this application: [google login URL] . Cuando intento iniciar sesión con la cuenta designada como propietaria de la secuencia de comandos en la consola de desarrolladores de Google, aparece el error Error 403: access_denied error de acceso denegado con el mensaje The developer hasn't given you access to this app. It's currently being tested and it hasn't been verified by Google. If you think you should have access, contact the developer [the email I just tried to log in with].

 from __future__ import print_function import pickle import os.path from googleapiclient.discovery import build from google_auth_oauthlib.flow import InstalledAppFlow from google.auth.transport.requests import Request # If modifying these scopes, delete the file token.pickle. SCOPES = ['https://www.googleapis.com/auth/spreadsheets.readonly'] # The ID and range of a sample spreadsheet. SAMPLE_SPREADSHEET_ID = '1vrZpCGW58qCCEfVXoJYlwlulraIlfWI2SmFXa1iPtuU' SAMPLE_RANGE_NAME = 'Class Data!A2:E' def main(): """Shows basic usage of the Sheets API. Prints values from a sample spreadsheet. """ creds = None # The file token.pickle stores the user's access and refresh tokens, and is # created automatically when the authorization flow completes for the first # time. if os.path.exists('token.pickle'): with open('token.pickle', 'rb') as token: creds = pickle.load(token) # If there are no (valid) credentials available, let the user log in. if not creds or not creds.valid: if creds and creds.expired and creds.refresh_token: creds.refresh(Request()) else: flow = InstalledAppFlow.from_client_secrets_file( 'Google_API_Key.json', SCOPES) creds = flow.run_local_server(port=0) # Save the credentials for the next run with open('token.pickle', 'wb') as token: pickle.dump(creds, token) service = build('sheets', 'v4', credentials=creds) # Call the Sheets API sheet = service.spreadsheets() result = sheet.values().get(spreadsheetId=SAMPLE_SPREADSHEET_ID, range=SAMPLE_RANGE_NAME).execute() values = result.get('values', []) if not values: print('No data found.') else: print('Name, Major:') for row in values: # Print columns A and E, which correspond to indices 0 and 4. print('%s, %s' % (row[0], row[4])) def PrintToSheets(): main()