gistfile1.py

            with make_temp_dir(listing_id) as tmpdir:

                logger.console('Downloading assets for %s to %s' % (listing_id, tmpdir))
                photoset = photos.Photoset(filenames, tmpdir, limit=MAXIMUM_PHOTOS, subprocessor=logged_popen)
                photoset.load()
                if photoset.count() < MINIMUM_PHOTOS:
                    raise RuntimeWarning('Too few conforming photos')

                photoset.process()


def make_temp_dir(listing_id):
    """ A context manager for the temp directory to ensure we clean up after ourselves """
    temp_dir = tempfile.mkdtemp(prefix='%s.' % str(listing_id))
    try:
        yield temp_dir
    finally:
        shutil.rmtree(temp_dir)