stdin,stdout,stderr=ssh.exec_command("touch Hello")

print "hello,world"

transport = paramiko.Transport(("host", 22))
transport.connect(username = "username", password = "password")
sftp = paramiko.SFTPClient.from_transport(transport)

f = sftp.open("/path/to/remote/file", "wb")
f.write("hello,world")
f.close()