>>> from ftplib import FTP
>>> ftp = FTP('192.168.1.11')
>>> ftp.login('username', 'password')  # actual credentials replaced for code sample...
'230 User logged in, proceed'
>>> ftp.nlst()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libftplib.py", line 557, in nlst
    self.retrlines(cmd, files.append)
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libftplib.py", line 466, in retrlines
    with self.transfercmd(cmd) as conn,
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libftplib.py", line 397, in transfercmd
    return self.ntransfercmd(cmd, rest)[0]
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libftplib.py", line 359, in ntransfercmd
    source_address=self.source_address)
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libsocket.py", line 704, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libsocket.py", line 743, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 11001] getaddrinfo failed
>>> ftp.retrlines('LIST')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libftplib.py", line 466, in retrlines
    with self.transfercmd(cmd) as conn,
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libftplib.py", line 397, in transfercmd
    return self.ntransfercmd(cmd, rest)[0]
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libftplib.py", line 359, in ntransfercmd
    source_address=self.source_address)
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libsocket.py", line 704, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
  File "C:Userssome_userAppDataLocalProgramsPythonPython36-32libsocket.py", line 743, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 11001] getaddrinfo failed
>>>