Copying files from Remote machine using sftp in python

Question

I want to be able to copy a file from a remote machine using either scp, ssh or sftp in python. The best way I've found is to use ssh with sftp. I've been trying to use this example to accomplish what I need to do.

import paramiko
import os

paramiko.util.log_to_file('logfile.log')

host = "101.102.103.104"
port = 22
transport = paramiko.Transport((host, port))
password = "pass"
username = "user"

sftp = paramiko.SFTPClient.from_transport(transport)

filepath = '~/remote/file'
localpath = '~/local/file'
sftp.get(filepath, localpath)

sftp.close()
transport.close()

When I do this, I receive this error:

Traceback (most recent call last):
  File "example.py", line 19, in <module>
    sftp.get(filepath, localpath)
AttributeError: 'NoneType' object has no attribute 'get'

Is there something I'm missing or not doing correctly?

Thank you

this call sftp = paramiko.SFTPClient.from_transport(transport) is returning None. Figure out why thats happening — Paul Seeb
– Paul Seeb, Commented Jun 22, 2012 at 14:11

Sergey Golovchenko · Accepted Answer · 2012-06-22 14:13:28Z

1

Your username and password are initialized but never used. You need to call connect for your transport object

password = "pass"
username = "user"
transport.connect(username = username, password = password)

answered Jun 22, 2012 at 14:13

Sergey Golovchenko

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3 Comments

user1186173 Over a year ago

You're absolutely right, I completely missed that. Thanks for pointing it out. But now when I run it, I get an IOError saying the file doesn't exist in sftp.get(filepath, localpath) but they definitely do exist

Sergey Golovchenko Over a year ago

make sure all directories in the localpath exist before calling sftp.get()

user1186173 Over a year ago

I figured it out, it's because I have to provide the full path as oppose to using "~/"

snies · Accepted Answer · 2012-06-22 14:22:43Z

0

The API specifies you have to provide a "socket like object" to paramiko.Transport() you provide a tuple. I guess that's the problem.

UPDATE: Although specified otherwise in the docs the tuple is ok.

edited Jun 22, 2012 at 14:22

answered Jun 22, 2012 at 14:14

snies

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2 Comments

lvc Over a year ago

The documentation says that, but the source code (particularly, line 281 and just after) shows that Transport does accept a tuple.

snies Over a year ago

Yes, i have just found out, too. Well as i said only a "guess" don't have paramiko available for testing right now.

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