如何在python scp？

在Python中scp文件的最pythonic方法是什么？我所知道的唯一途径是

os.system('scp "%s" "%s:%s"' % (localfile, remotehost, remotefile) )

这是一个hack,并且在类似Linux的系统之外不起作用,并且需要Pexpect模块的帮助以避免密码提示,除非您已经将无密码SSH设置到远程主机.

我知道Twisted的conch,但我宁愿避免通过低级ssh模块自己实现scp.

我知道paramiko,一个支持ssh和sftp的Python模块; 但它不支持scp.

背景:我正在连接到不支持sftp但支持ssh/scp的路由器,所以sftp不是一个选项.

编辑:这是如何使用SCP或SSH将文件复制到Python中的远程服务器？. 但是,这个问题没有给出一个scp特定的答案来处理python中的键.我希望有一种运行代码的方式

import scp

client = scp.Client(host=host, user=user, keyfile=keyfile)
# or
client = scp.Client(host=host, user=user)
client.use_system_keys()
# or
client = scp.Client(host=host, user=user, password=password)

# and then
client.transfer('/etc/local/filename', '/etc/remote/filename')

小智.. 93

试试模块paramiko_scp.它非常易于使用.请参阅以下示例:

import paramiko
from scp import SCPClient

def createSSHClient(server, port, user, password):
    client = paramiko.SSHClient()
    client.load_system_host_keys()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    client.connect(server, port, user, password)
    return client

ssh = createSSHClient(server, port, user, password)
scp = SCPClient(ssh.get_transport())

然后调用scp.get()或scp.put()来执行scp操作.

(SCPClient代码)

试试模块paramiko_scp.它非常易于使用.请参阅以下示例:

import paramiko
from scp import SCPClient

def createSSHClient(server, port, user, password):
    client = paramiko.SSHClient()
    client.load_system_host_keys()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    client.connect(server, port, user, password)
    return client

ssh = createSSHClient(server, port, user, password)
scp = SCPClient(ssh.get_transport())

然后调用scp.get()或scp.put()来执行scp操作.

(SCPClient代码)

您可能对尝试Pexpect(源代码)感兴趣.这将允许您处理密码的交互式提示.

以下是主网站上的示例用法(对于ftp):

# This connects to the openbsd ftp site and
# downloads the recursive directory listing.
import pexpect
child = pexpect.spawn ('ftp ftp.openbsd.org')
child.expect ('Name .*: ')
child.sendline ('anonymous')
child.expect ('Password:')
child.sendline ('noah@example.com')
child.expect ('ftp> ')
child.sendline ('cd pub')
child.expect('ftp> ')
child.sendline ('get ls-lR.gz')
child.expect('ftp> ')
child.sendline ('bye')

from paramiko import SSHClient
from scp import SCPClient

ssh = SSHClient()
ssh.load_system_host_keys()
ssh.connect('example.com')

with SCPClient(ssh.get_transport()) as scp:
   scp.put('test.txt', 'test2.txt')
   scp.get('test2.txt')

from fabric import Connection

with Connection(host="hostname", 
                user="admin", 
                connect_kwargs={"key_filename": "/home/myuser/.ssh/private.key"}
               ) as c:
    c.get('/foo/bar/file.txt', '/tmp/')

from subprocess import call

cmd = "scp user1@host1:files user2@host2:files"
call(cmd.split(" "))