def ssh_connect(host, username, password):
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    try:
        ssh.connect(host, port=22, username=username, password=password)
    except paramiko.ssh_exception.BadAuthenticationType:
        print(logbadhost + host + " is not accept passwors")
        logger.log(3, logbadhost + host + " is not accept passwors")
        return 2
    except paramiko.ssh_exception.AuthenticationException:
        logger.log(2, logbadpass + username + "@" + host + ":" + password)
        return 1
    except paramiko.ssh_exception.SSHException:
        logger.log(3, logbadhost + host + " is ebnytii kakoito")
        return 2
    except socket.timeout:
        logger.log(3, logbadhost + host + " is down")
        return 2
    except socket.error as e:
        # print(e)
        return
    except ConnectionRefusedError as e:
        # print(e)
        logger.log(3, logbadhost + host + " is ebnytii kakoito")
        return 2
    except EOFError as e:
        # print(e)
        logger.log(3, logbadhost + host + " is ebnytii kakoito")
        return 2
    except:
        return 2
    else:
        print(loggoodpass + username + "@" + host + ":" + password)
        logger.log(4, loggoodpass + username + "@" + host + ":" + password)
        return 0
    finally:
        ssh.close()

Exception: Error reading SSH protocol banner Bad file descriptor
Traceback (most recent call last):
File “/usr/local/lib/python3.4/dist-packages/paramiko/transport.py”, line 1707, in _check_banner
buf = self.packetizer.readline(timeout)
File “/usr/local/lib/python3.4/dist-packages/paramiko/packet.py”, line 281, in readline
buf += self._read_timeout(timeout)
File “/usr/local/lib/python3.4/dist-packages/paramiko/packet.py”, line 434, in _read_timeout
x = self.__socket.recv(128)
OSError: Bad file descriptor

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “/usr/local/lib/python3.4/dist-packages/paramiko/transport.py”, line 1584, in run
self._check_banner()
File “/usr/local/lib/python3.4/dist-packages/paramiko/transport.py”, line 1711, in _check_banner
raise SSHException('Error reading SSH protocol banner' + str(e))
paramiko.ssh_exception.SSHException: Error reading SSH protocol banner Bad file descriptor

Exception: Error reading SSH protocol banner Connection reset by peer
Traceback (most recent call last):
File “/usr/local/lib/python3.4/dist-packages/paramiko/transport.py”, line 1707, in _check_banner
buf = self.packetizer.readline(timeout)
File “/usr/local/lib/python3.4/dist-packages/paramiko/packet.py”, line 281, in readline
buf += self._read_timeout(timeout)
File “/usr/local/lib/python3.4/dist-packages/paramiko/packet.py”, line 434, in _read_timeout
x = self.__socket.recv(128)
ConnectionResetError: Connection reset by peer

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “/usr/local/lib/python3.4/dist-packages/paramiko/transport.py”, line 1584, in run
self._check_banner()
File “/usr/local/lib/python3.4/dist-packages/paramiko/transport.py”, line 1711, in _check_banner
raise SSHException('Error reading SSH protocol banner' + str(e))
paramiko.ssh_exception.SSHException: Error reading SSH protocol banner Connection reset by peer

devnull01
от вывода было бы избавиться не плохо (но не просто заткнуть, а перехватить как нибудь)

>>> import sys
>>> _s = sys.stderr
>>> sys.stderr = open('/dev/null', 'w')
>>> 
>>> print('qwe')
qwe
>>> 1/0
>>> 
>>> sys.stderr = _s
>>> 
>>> 1/0
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ZeroDivisionError: integer division or modulo by zero
>>> 

devnull01
Возможно ли как то получить этот самый exeption, что бы знать, что неверно указан порт?