tar.gz archiving in python

tar.py

import os                                                                                                                                                                                                          
import tarfile                                                                                                                                                                                                                                                                                                                                                                                                                       
from contextlib import closing                                                                                                                                                                                     
                                                                                                                                                                                                                                                                                                                                                                                                                                      
dirs = ['/var/www/clients/site1', '/var/www/clients/site2']                                                                                                                                                                                       
                                                                                                                                                                                                                   
for d in dirs:                                                                                                                                                                                                     
    contents = os.listdir(d)                                                                                                                                                                                       
    name = d.split('/')[4]                                                                                                                                                                                         
    print (name)                                                                                                                                                                                                   
    with closing(tarfile.open('%s.tar.gz' % name, 'w:gz')) as tar:                                                                                                                                                 
        for item in contents:                                                                                                                                                                                      
            tar.add(os.path.join(d, item))