Paramiko脚本出现错误

import paramiko

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

try:
    ssh.connect('your_server', username='your_username', password='your_password', timeout=10)
except paramiko.SSHException as e:
    print(f"Connection error: {e}")

import paramiko

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

try:
    ssh.connect('your_server', username='your_username', password='your_password')
except paramiko.AuthenticationException as e:
    print(f"Authentication error: {e}")

import paramiko

private_key_path = 'path/to/your/private_key'
mykey = paramiko.RSAKey.from_private_key_file(private_key_path)

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

try:
    ssh.connect('your_server', username='your_username', pkey=mykey)
except paramiko.SSHException as e:
    print(f"Key error: {e}")

import paramiko

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('your_server', username='your_username', password='your_password')

stdin, stdout, stderr = ssh.exec_command('your_command')
output = stdout.read().decode('utf-8')
error = stderr.read().decode('utf-8')

print(f"Output: {output}")
print(f"Error: {error}")

stdin, stdout, stderr = None, None, None  # 关闭通道
ssh.close()