require tar(1) or any other tool, if at all other modules are
required.
arm = subprocess.Popen([gnunetarm, '-sq', '-c', 'test_gnunet_fs_rec_data.conf'])
arm.communicate()
-# pray that `tar' is in PATH.
-# FIXME: Actually we should check for that and output
-# a message if it isn't found.
tar = tarfile.open('test_gnunet_fs_rec_data.tgz')
tar.extractall()
# first, basic publish-search-download run