How to make Python check if ftp directory exists?

Question

I\'m using this script to connect to sample ftp server and list available directories:

from ftplib import FTP
ftp = FTP(\'ftp.cwi.nl\')   # connect to host, defa         


        

Answer 1

In 3.x nlst() method is deprecated. Use this code:

import ftplib

remote = ftplib.FTP('example.com')
remote.login()

if 'foo' in [name for name, data in list(remote.mlsd())]:
    # do your stuff

The list() call is needed because mlsd() returns a generator and they do not support checking what is in them (do not have __contains__() method).

You can wrap [name for name, data in list(remote.mlsd())] list comp in a function of method and call it when you will need to just check if a directory (or file) exists.