使用 Gmail API 从 Gmail 下载附件

我在用邮箱API https://developers.google.com/gmail/api访问我的 Gmail 数据以及谷歌Python API客户端 https://github.com/googleapis/google-api-python-client.

根据文档获取消息依恋他们给了一个sample https://developers.google.com/gmail/api/v1/reference/users/messages/attachments/get对于Python。但我尝试了相同的代码，然后出现错误：

AttributeError：“资源”对象没有属性“用户”

我收到错误的行：

message = service.user().messages().get(userId=user_id, id=msg_id).execute()

所以我尝试了users()通过替换user():

message = service.users().messages().get(userId=user_id, id=msg_id).execute()

但我没有得到part['body']['data'] in for part in message['payload']['parts'].

扩展@Eric的答案，我从文档中编写了以下更正版本的 GetAttachments 函数：

# based on Python example from 
# https://developers.google.com/gmail/api/v1/reference/users/messages/attachments/get
# which is licensed under Apache 2.0 License

import base64
from apiclient import errors

def GetAttachments(service, user_id, msg_id):
    """Get and store attachment from Message with given id.

    :param service: Authorized Gmail API service instance.
    :param user_id: User's email address. The special value "me" can be used to indicate the authenticated user.
    :param msg_id: ID of Message containing attachment.
    """
    try:
        message = service.users().messages().get(userId=user_id, id=msg_id).execute()

        for part in message['payload']['parts']:
            if part['filename']:
                if 'data' in part['body']:
                    data = part['body']['data']
                else:
                    att_id = part['body']['attachmentId']
                    att = service.users().messages().attachments().get(userId=user_id, messageId=msg_id,id=att_id).execute()
                    data = att['data']
                file_data = base64.urlsafe_b64decode(data.encode('UTF-8'))
                path = part['filename']

                with open(path, 'w') as f:
                    f.write(file_data)

    except errors.HttpError, error:
        print 'An error occurred: %s' % error