Python dict KeyError'RFC822'-IMAPClient for Gmail

Question

所以我是编码的初学者，因此我选择了Python作为入门。我正在尝试整理一个脚本，以获取从特定联系人收到的最后一封电子邮件的“日期”。然后，此“日期”将保存在Google工作表中。

下面是我到目前为止拥有的仅处理Gmail部分的代码。我实际上已经使用了here中的部分代码。但是，我得到一个错误

追踪（最近通话）：文件“ C：/Users/PycharmProjects/Automate/Code.py”，第33行，在msg_string =数据['RFC822']KeyError：“ RFC822”

不知道怎么了。我正在使用Python 3.8.1

import email
from imapclient import IMAPClient

HOST = 'imap.gmail.com'
USERNAME = 'username'
PASSWORD = 'password'
ssl = True

## Connect, login and select the INBOX
server = IMAPClient(HOST, use_uid=True, ssl=ssl)
server.login(USERNAME, PASSWORD)
select_info = server.select_folder('INBOX')

messages = server.search(['FROM', '[email protected]'])

response = server.fetch(messages, ['RFC822'])

for msgid, data in response.items():
    msg_string = data['RFC822']
    msg = email.message_from_string(msg_string)
    print('ID %d: From: %s Date: %s' % (msgid, msg['From'], msg['date']))

同样，我不确定要完成的代码是否完整。任何帮助表示赞赏。

此外，添加从调试获得的消息

pydev debugger: process 344 is connecting

Connected to pydev debugger (build 193.6494.30)
Traceback (most recent call last):
  File "C:\Users\PycharmProjects\Automate\venv\lib\site-packages\httplib2\__init__.py", line 1557, in _conn_request
    conn.connect()
  File "C:\Users\PycharmProjects\Automate\venv\lib\site-packages\httplib2\__init__.py", line 1305, in connect
    address_info = socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM)
  File "C:\Program Files (x86)\Python38-32\lib\socket.py", line 918, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 11001] getaddrinfo failed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\PycharmProjects\Automate\venv\lib\site-packages\httplib2\__init__.py", line 1982, in request
    (response, content) = self._request(
  File "C:\Users\PycharmProjects\Automate\venv\lib\site-packages\httplib2\__init__.py", line 1650, in _request
    (response, content) = self._conn_request(
  File "C:\Users\PycharmProjects\Automate\venv\lib\site-packages\httplib2\__init__.py", line 1564, in _conn_request
    raise ServerNotFoundError("Unable to find the server at %s" % conn.host)
httplib2.ServerNotFoundError: Unable to find the server at oauth2.googleapis.com

Process finished with exit code -1

Answer 1

在这里，我遍历了您的代码以再次产生相同的错误，并且得到相同的结果。

为了解决这个问题，我检查了字典键，并注意到字典键和值被编码为字节。

所以，我使用字节键访问和解码以将消息转换为str，如下：

import email
from imapclient import IMAPClient

HOST = 'imap.gmail.com'
USERNAME = 'username'
PASSWORD = 'password'
ssl = True

## Connect, login and select the INBOX
server = IMAPClient(HOST, use_uid=True, ssl=ssl)
server.login(USERNAME, PASSWORD)
select_info = server.select_folder('INBOX')

messages = server.search(['FROM', '[email protected]'])

response = server.fetch(messages, ['RFC822'])

for msgid, data in response.items():
    msg_string = data[b'RFC822']
    msg = email.message_from_string(msg_string.decode())
    print('ID %d: From: %s Date: %s' % (msgid, msg['From'], msg['date']))