Question

尝试使用Google API发送电子邮件时出现错误。

在线：

 message = (service.users().messages().send(userId=user_id, body=message)\
   .execute())

错误消息：

google.auth.exceptions.RefreshError ：（“'unauthorized_client：未经授权的客户端可以使用此方法检索访问令牌。'，'{\ n“ error”：“ unauthorized_client”，\ n“ error_description”：“客户端未经授权使用此方法检索访问令牌。“ \ n}'）

我使用https://developers.google.com/gmail/api/guides/sending中的一个例子进行少量修改：

 from __future__ import print_function
 from googleapiclient.discovery import build
 from apiclient import errors
 from httplib2 import Http
 from email.mime.text import MIMEText
 import base64
 from google.oauth2 import service_account
 import os


 def create_message(sender, to, subject, message_text):
   """Create a message for an email.
   Args:
     sender: Email address of the sender.
     to: Email address of the receiver.
     subject: The subject of the email message.
     message_text: The text of the email message.
   Returns:
     An object containing a base64url encoded email object.
   """
   message = MIMEText(message_text)
   message['to'] = to
   message['from'] = sender
   message['subject'] = subject
   return {'raw': base64.urlsafe_b64encode(message.as_string().encode())\
     .decode()}

 def send_message(service, user_id, message):
   """Send an email message.
   Args:
     service: Authorized Gmail API service instance.
     user_id: User's email address. The special value "me"
     can be used to indicate the authenticated user.
     message: Message to be sent.
   Returns:
     Sent Message.
   """
   try:
     message = (service.users().messages().send(userId=user_id, body=message)\
       .execute())
     print('Message Id: %s' % message['id'])
     return message
   except errors.HttpError as error:
     print('An error occurred: %s' % error)

 def service_account_login():
   SCOPES = ['https://www.googleapis.com/auth/gmail.send']
   SERVICE_ACCOUNT_FILE = '{}\\service-key.json'.format(__path__)

   credentials = service_account.Credentials.from_service_account_file(
      SERVICE_ACCOUNT_FILE, scopes=SCOPES)
   delegated_credentials = credentials.with_subject(EMAIL_FROM)
   service = build('gmail', 'v1', credentials=delegated_credentials)
   return service


 EMAIL_FROM = 'email_from@gmail.com'
 EMAIL_TO = 'email_to@ikea.com'
 EMAIL_SUBJECT = 'Hello  from Arnold!'
 EMAIL_CONTENT = 'Hello, this is a Arnold'
 __path__ = os.path.dirname(os.path.realpath(__file__))


 service = service_account_login()
 message = create_message(EMAIL_FROM, EMAIL_TO, EMAIL_SUBJECT, EMAIL_CONTENT)
 sent = send_message(service,'me', message)

如何避免出现此错误消息并发送电子邮件。

如何在python中修复“ google.auth.exceptions.RefreshError”

0 个答案: