Python-FTP download all files in directory
from ftplib import FTP
import os, sys, os.path

def handleDownload(block):
    file.write(block)
    print ".",

ddir='C:\Data\test\'
os.chdir(ddir)
ftp = FTP('test1/server/')

print 'Logging in.'
ftp.login('user1\anon', 'pswrd20')
directory = '\data\test\'

print 'Changing to ' + directory
ftp.cwd(directory)
ftp.retrlines('LIST')

print 'Accessing files'

for subdir, dirs, files in os.walk(directory):
    for file in files:
        full_fname = os.path.join(root, fname);
        print 'Opening local file '
        ftp.retrbinary('RETR C:\Data\test\' + fname,
                       handleDownload,
                       open(full_fname, 'wb'));
        print 'Closing file ' + filename
        file.close();
ftp.close()

cd c:destination
wget --mirror --continue --no-host-directories --user=username --password=s3cr3t ftp://hostname/source/path/

for subdir, dirs, files in os.walk(directory):

>>> class c:
...  def __call__(self, *args):
...   print(args)
...
>>> f = c()
>>> f('hello')
('hello',)
>>> f('hello', 'world')
('hello', 'world')

class handle_lines:
  def __init__(self):
    self.lines = []
  def __call__(self, *args):
    self.lines << args[0]

filenames = []
ftp.retrlines('NLST', filenames.append)
print filenames

for filename in filenames:
    local_filename = os.path.join('C:\test\', filename)
    file = open(local_filename, 'wb')
    ftp.retrbinary('RETR '+ filename, file.write)

    file.close()

ftp.close()