如何遍历IP地址列表和每个地址的SSH？

import paramiko

def ssh_connect(ip_address, username, password):
    try:
        # 创建SSH客户端
        client = paramiko.SSHClient()
        # 自动添加主机密钥
        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        # 连接SSH服务器
        client.connect(ip_address, username=username, password=password)
        # 执行命令
        stdin, stdout, stderr = client.exec_command('ls')
        # 输出命令执行结果
        print(stdout.read().decode())
        # 关闭SSH连接
        client.close()
    except paramiko.AuthenticationException:
        print(f"Failed to connect to {ip_address} with username {username} and password {password}")
    except paramiko.SSHException as e:
        print(f"SSH error: {str(e)}")
    except paramiko.Exception as e:
        print(f"Error: {str(e)}")

def traverse_ip_addresses(ip_list, username, password):
    for ip_address in ip_list:
        ssh_connect(ip_address, username, password)

# 示例IP地址列表
ip_list = ['192.168.0.1', '192.168.0.2', '192.168.0.3']
username = 'your_username'
password = 'your_password'

# 遍历IP地址列表并进行SSH连接
traverse_ip_addresses(ip_list, username, password)