Client_id = 'xxx'
Client_secret = 'yyy'
Scope = 'https://spreadsheets.google.com/feeds/'
User_agent = 'myself'
token = gdata.gauth.OAuth2Token(client_id=Client_id, client_secret=
    Client_secret, scope=Scope, user_agent=User_agent)
print(token.generate_authorize_url(redirect_uri='urn:ietf:wg:oauth:2.0:oob'))
code = input('What is the verification code? ').strip()
token.get_access_token(code)
print('Refresh token\n')
print(token.refresh_token)
print('Access Token\n')
print(token.access_token)
Gdata python аутентификация в приложениях Google