- map.connect('/forums/{forum_id}/write', controller='forum', action='write_thread')
- map.connect('/forums/{forum_id}/threads/{thread_id}/write', controller='forum', action='write')
+ map.connect(r'/forums/{forum_id:\d+}/write', controller='forum', action='write_thread')
+ map.connect(r'/forums/{forum_id:\d+}/threads/{thread_id:\d+}/write', controller='forum', action='write')