本文介绍了从Gmail使用Gmail API下载附件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在使用Gmail API访问我的Gmail数据和谷歌python api客户端。
I am using Gmail API to access my gmail data and google python api client.
根据获取消息附件的文档，他们给了一个示例python
According to documentation to get the message attachment they gave one sample for python
但我尝试的代码相同然后我收到错误：
but the same code i tried then i am getting error:
AttributeError: 'Resource' object has no attribute 'user'
行我收到错误：
message = service.user().messages().get(userId=user_id, id=msg_id).execute()
所以我尝试使用 users（）替换 user（）
message = service.users().messages().get(userId=user_id, id=msg_id).execute()
但我没有得到 pa ['body'] ['data'] in for part in message ['payload'] ['parts']
but i am not getting part['body']['data'] in for part in message['payload']['parts']
推荐答案
展开@Eric答案，我从文档中写了以下纠正版本的GetAttachments函数：
Expanding @Eric answer, I wrote the following corrected version of GetAttachments function from the docs:
# 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, prefix=""):
"""Get and store attachment from Message with given id.
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.
msg_id: ID of Message containing attachment.
prefix: prefix which is added to the attachment filename on saving
"""
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 = prefix+part['filename']
with open(path, 'w') as f:
f.write(file_data)
except errors.HttpError, error:
print 'An error occurred: %s' % error
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