使用paramiko的时候捕获异常没有效果

Question

try:

client.connect(hostname='192.168.10.21', port=22, username='root', password='eaecd231')

except paramiko.ssh_exception.AuthenticationException:

print('password error')

except (ConnectionResetError,paramiko.ssh_exception.SSHException):

print('connect error')

但最后还是有报异常

Exception: Error reading SSH protocol banner[WinError 10054] 远程主机强迫关闭了一个现有的连接。
Traceback (most recent call last):
  File "C:\Users\GreatWall\AppData\Local\Programs\Python\Python36\lib\site-packages\paramiko\transport.py", line 2211, in _check_banner
    buf = self.packetizer.readline(timeout)
  File "C:\Users\GreatWall\AppData\Local\Programs\Python\Python36\lib\site-packages\paramiko\packet.py", line 380, in readline
    buf += self._read_timeout(timeout)
  File "C:\Users\GreatWall\AppData\Local\Programs\Python\Python36\lib\site-packages\paramiko\packet.py", line 607, in _read_timeout
    x = self.__socket.recv(128)
ConnectionResetError: [WinError 10054] 远程主机强迫关闭了一个现有的连接。

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\GreatWall\AppData\Local\Programs\Python\Python36\lib\site-packages\paramiko\transport.py", line 2039, in run
    self._check_banner()
  File "C:\Users\GreatWall\AppData\Local\Programs\Python\Python36\lib\site-packages\paramiko\transport.py", line 2216, in _check_banner
    "Error reading SSH protocol banner" + str(e)
paramiko.ssh_exception.SSHException: Error reading SSH protocol banner[WinError 10054] 远程主机强迫关闭了一个现有的连接。

connect error