如何根据主题下载gmail附件？错误：连接到imap.gmail.com时“没有路由到主机”

问题描述：

这是我的第一个Python代码，请原谅。这就是我写的。如何根据主题下载gmail附件？错误：连接到imap.gmail.com时“没有路由到主机”

import imaplib 
import email 
import os 
import getpass 

email = 'br******@******.com' 
password = getpass.getpass('Enter your password: ') 
mail = 'imap.gmail.com' 
flag = '(RFC822)' 
svdir = 'c:/Users/' 

m = imaplib.IMAP4(mail) 
m.login(email,password) 
m.select('inbox') 
typ, msgs = m.search(None, 'subject:resume has:attachment') 
msgs = msgs[0].split() 
for emailid in msgs: 
resp, data = m.fetch(emailid, "(RFC822)") 
email_body = data[0][1] 
mail = email.message_from_string(email_body) 
if mail.get_content_maintype() != 'multipart': 
    continue 
for part in mail.walk(): 
if part.get_content_maintype() == 'multipart': 
    continue 
if part.get('Content-Disposition') is None: 
    continue 
filename=part.get_filename() 
if filename is not None: 
sv_path = os.path.join(svdir, filename) 
if not os.path.isfile(sv_path): 
    print (sv_path) 
fp = open(sv_path, 'wb') 
fp.write(part.get_payload(decode=True)) 
fp.close()

但我得到这个错误。

Traceback (most recent call last): 
    File "/Users/Documents/Fetch_Attchments.py", line 12, in  <module> 
    m = imaplib.IMAP4(mail) 
    File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/imaplib.py", line  197, in __init__ 
    self.open(host, port) 
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/imaplib.py", line 294, in open 
    self.sock = self._create_socket() 
    File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/imaplib.py", line 284, in _create_socket 
    return socket.create_connection((self.host, self.port)) 
    File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/socket.py", line 711, in create_connection 
    raise err 
    File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/socket.py", line 702, in create_connection 
    sock.connect(sa) 
OSError: [Errno 65] No route to host

我按主题过滤邮件并将附件保存到特定位置。请注意，主题条件将只过滤一条消息。

请修正缩进为四个空格，这将使得代码更易读，它的缩进Python代码的正式方法。 – linusg

@linusg无论如何你可以忽略大部分的代码;它在12号线失败。 – melpomene

答

Gmail不允许在纯文本端口上进行连接。 SSL/TLS是必需的。

你将需要：

m = imaplib.IMAP4_SSL("imap.gmail.com", 993)

如何根据主题下载gmail附件？错误：连接到imap.gmail.com时“没有路由到主机”

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