Extending Python's os.walk function on FTP server

Question

How can I make os.walk traverse the directory tree of an FTP database (located on a remote server)? The way the code is structured now is (comments provided):

Answer 1

Im going to assume this is what you want ... although really I have no idea

ssh = paramiko.SSHClient()
ssh.connect(server, username=username, password=password)
ssh_stdin, ssh_stdout, ssh_stderr = ssh.exec_command("locate my_file.txt")
print ssh_stdout

this will require the remote server to have the mlocate package `sudo apt-get install mlocate;sudo updatedb();