for host in hosts():
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    try:
        ssh.connect(host, username=l_user, password=l_password, timeout=1000)
    except paramiko.SSHException:
        print("Connection Failed")
    except paramiko.AuthenticationException:
        raise 259
    except socket.error:
        raise 261
    transport = ssh.get_transport()
    session = transport.open_session()
    session.set_combine_stderr(True)
    session.get_pty()
    for commands in l_commands:
        session = transport.open_session()
        session.set_combine_stderr(True)
        session.get_pty()
        session.exec_command(commands)
        stdin = session.makefile('wb', -1)
        stdout = session.makefile('rb', -1)
        # you have to check if you really need to send password here
        stdin.write(l_password + 'n')
        stdin.flush()
        key_list = []
        for line in stdout.read().splitlines():
            input_line = line
            input_line = input_line.replace(b'[sudo] password for ufitadmin: ', b'')
            key_individual = str(input_line, 'utf-8')
            key_individual = key_individual.replace(
                'cat: /home/%s/.ssh/authorized_keys: No such file or directory' % user,
                'No key exists for this user.')
            key_list.append(key_individual)
        # key_list = list(filter(None, key_list))
        # list2 = [x for x in key_list if x]


        global keyDict
        keyDict = {}
        keyDict[host] = key_list
        filterString = "No key exists for this user."
        filteredKeylist = []

        def filteredKeys():
            for key,value in keyDict.items():
               for values in value:
                   if values == filterString:
                       return key



        filteredKeylist = list(filteredKeys())

        print(filteredKeylist)