updated playlist id parsing for new playlist id format

backend/common/src/urlparser.py

@@ -114,7 +114,9 @@ class Parser:
             item_type = "video"
         elif len_id_str == 24:
             item_type = "channel"
-        elif len_id_str in (34, 26, 18) or id_str.startswith("TA_playlist_"):
+        elif len_id_str in (34, 26, 18, 13) or id_str.startswith(
+            "TA_playlist_"
+        ):
             item_type = "playlist"
         else:
             raise ValueError(f"not a valid id_str: {id_str}")

backend/common/tests/test_src/test_urlparser.py

@@ -77,15 +77,28 @@ CHANNEL_VID_TYPES = [
 PLAYLIST_URL_IN = [
     "PL96C35uN7xGJu6skU4TBYrIWxggkZBrF5",
     "https://www.youtube.com/playlist?list=PL96C35uN7xGJu6skU4TBYrIWxggkZBrF5",
+    "https://www.youtube.com/playlist?list=PLE6-bhDW8GWg",
 ]
 PLAYLIST_OUT = [
     {
         "type": "playlist",
         "url": "PL96C35uN7xGJu6skU4TBYrIWxggkZBrF5",
         "vid_type": "unknown",
-    }
+    },
+    {
+        "type": "playlist",
+        "url": "PL96C35uN7xGJu6skU4TBYrIWxggkZBrF5",
+        "vid_type": "unknown",
+    },
+    {
+        "type": "playlist",
+        "url": "PLE6-bhDW8GWg",
+        "vid_type": "unknown",
+    },
+]
+PLAYLIST_TEST_CASES = [
+    (i, [PLAYLIST_OUT[idx]]) for idx, i in enumerate(PLAYLIST_URL_IN)
 ]
-PLAYLIST_TEST_CASES = [(i, PLAYLIST_OUT) for i in PLAYLIST_URL_IN]
 
 # personal playlists
 EXPECTED_WL = [{"type": "playlist", "url": "WL", "vid_type": "unknown"}]