Sure, there are several ways to do it!

Let's say you've got a Raspberry Pi on a raspberry.lan host and your username is irfan.

subprocess

It's the default Python library that runs commands.
You can make it run ssh and do whatever you need on a remote server.

scrat has it covered in his answer. You definitely should do this if you don't want to use any third-party libraries.

You can also automate the password/passphrase entering using pexpect.

paramiko

paramiko is a third-party library that adds SSH-protocol support, so it can work like an SSH-client.

The example code that would connect to the server, execute and grab the results of the ls -l command would look like that:

import paramikoclient = paramiko.SSHClient()client.set_missing_host_key_policy(paramiko.AutoAddPolicy())client.connect('raspberry.lan', username='irfan', password='my_strong_password')stdin, stdout, stderr = client.exec_command('ls -l')for line in stdout:    print line.strip('\n')client.close()

fabric

You can also achieve it using fabric.
Fabric is a deployment tool which executes various commands on remote servers.

It's often used to run stuff on a remote server, so you could easily put your latest version of the web application, restart a web-server and whatnot with a single command. Actually, you can run the same command on multiple servers, which is awesome!

Though it was made as a deploying and remote management tool, you still can use it to execute basic commands.

# fabfile.pyfrom fabric.api import *def list_files():    with cd('/'):  # change the directory to '/'        result = run('ls -l')  # run a 'ls -l' command        # you can do something with the result here,        # though it will still be displayed in fabric itself.

It's like typing cd / and ls -l in the remote server, so you'll get the list of directories in your root folder.

Then run in the shell:

fab list_files

It will prompt for an server address:

No hosts found. Please specify (single) host string for connection: irfan@raspberry.lan

A quick note: You can also assign a username and a host right in a fab command:

fab list_files -U irfan -H raspberry.lan

Or you could put a host into the env.hosts variable in your fabfile. Here's how to do it.

Then you'll be prompted for a SSH password:

[irfan@raspberry.lan] run: ls -l[irfan@raspberry.lan] Login password for 'irfan':

And then the command will be ran successfully.

[irfan@raspberry.lan] out: total 84[irfan@raspberry.lan] out: drwxr-xr-x   2 root root  4096 Feb  9 05:54 bin[irfan@raspberry.lan] out: drwxr-xr-x   3 root root  4096 Dec 19 08:19 boot...

Simple example from here:

import subprocessimport sysHOST="www.example.org"# Ports are handled in ~/.ssh/config since we use OpenSSHCOMMAND="uname -a"ssh = subprocess.Popen(["ssh", "%s" % HOST, COMMAND],                       shell=False,                       stdout=subprocess.PIPE,                       stderr=subprocess.PIPE)result = ssh.stdout.readlines()if result == []:    error = ssh.stderr.readlines()    print >>sys.stderr, "ERROR: %s" % errorelse:    print result

It does exactly what you want: connects over ssh, executes command, returns output. No third party library needed.

You may use below method with linux/ Unix 's built in ssh command.

   import os   os.system('ssh username@ip  bash < local_script.sh >> /local/path/output.txt 2>&1')   os.system('ssh username@ip  python < local_program.py >> /local/path/output.txt 2>&1')