Get folder size using FtpLib

Question

I\'m using FtpLib (Python) to download a folder with files from an ftp server. But I want to know the size of the folder before I start downloading it.

In the docume

Answer 1

Frederik Voordeckers' solution didn't work for me. When the method is called recursively, when dealing with a structure of subfolders, it raises the error 550 directory/.../sub_directory: No such file or directory.
I did modify his original code, by deleting the "self-declarations", since I did not use the method inside a class. This might have caused the error. I don't know.

Here is my solution:

def get_total_size(ftp_dir):
    size = 0
    parent_dir = ftp.pwd() # get the current directory
    for filename in ftp.nlst(ftp_dir):
        # (don't forget to import os)
        path = os.path.join(parent_dir, filename) # keeps recursively track of the path
        try:
            ftp.cwd(path)
            size += get_total_size(path)
            ftp.cwd(parent_dir)
        except:
            ftp.voidcmd('TYPE I')
            size += ftp.size(path)
    return size

Should work like a charm for everyone.