Paramiko connect SSH / SFHP via proxy

import paramiko, socks

# PySocks recommends using no arguments,
# because it only supports the defaults anyway.
sock = socks.socksocket()

host, port = '127.0.0.1', 1234

# Set up your proxy information for this socket
sock.set_proxy(
    proxy_type=socks.SOCKS5,
    addr=host,
    port=port,
    username='spam',
    password='eggs',
)

# Connect the socket
sock.connect((host, port))

# Connect an SSHClient
client = paramiko.SSHClient()
client.connect(host, port, 'username', 'password', sock=sock)

# Open SFTP session
client.open_sftp()