Python SSL FTP 连接超时

Question

我正在尝试从 Python (v3.3.0) 中使用 SSL 建立与 FTP 服务器的连接。但我总是超时。我不使用端口 990 作为 SSL 端口(偏执)。这会是这个问题的原因吗？如果是这样，我如何指定我正在使用的端口？

这是我的脚本:

    from ftplib import FTP
    from ftplib import FTP_TLS

    ftps = FTP_TLS('ip address')

    ftps.auth()

    ftps.sendcmd('USER uname') 
    ftps.sendcmd('PASS password')

    ftps.prot_p()
    ftps.retrlines('LIST')

    ftps.close()

结果如下:

Traceback (most recent call last):
  File "Scrpit name removed for posting", line 12, in <module>
    ftps.retrlines('LIST')
  File "C:\Python33\lib\ftplib.py", line 767, in retrlines
    conn = self.transfercmd(cmd)
  File "C:\Python33\lib\ftplib.py", line 381, in transfercmd
    return self.ntransfercmd(cmd, rest)[0]
  File "C:\Python33\lib\ftplib.py", line 742, in ntransfercmd
    conn, size = FTP.ntransfercmd(self, cmd, rest)
  File "C:\Python33\lib\ftplib.py", line 343, in ntransfercmd
    source_address=self.source_address)
  File "C:\Python33\lib\socket.py", line 424, in create_connection
    raise err
  File "C:\Python33\lib\socket.py", line 415, in create_connection
   sock.connect(sa)
TimeoutError: [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

如有任何建议，我们将不胜感激，

Answer 1

查看 ftplib source 后，它似乎不想使用除 21 之外的任何端口。

我认为你应该能够解决这个问题，比如

import ftplib

ftplib.FTP.port = 995     # or whatever port you are using
ftps = ftplib.FTP_TLS('hostname', 'user', 'pwd')
ftps.retrlines('LIST')