def select_album(album_id): user = users.get_current_user() album_list = AlbumList.get_for_user(user) the_album = None for album in album_list: if album['gphoto$id']['$t'] == album_id: the_album = album break if not album: return 'album not found' email_address = md5.new(os.urandom(25)).hexdigest() # if it's taken, generate new while AlbumEmailMapping.all().filter('email_address = ', email_address) \ .count() > 0: email_address = md5.new(os.urandom(25)).hexdigest() mapping = AlbumEmailMapping( owner=user, email_address=email_address, album=album) mapping.put() return redirect(url_for('list_albums'))