Replacing the complicated id extractor with a simpler one

playlists_mismatch.py

@@ -1,4 +1,5 @@
 from urllib.parse import urlparse, parse_qs
+import re
 
 def playlists_mismatch_func(playlistlink1, playlistlink2, output = 'link'):
     """Return the ids of videos that are only one of the playlists, and not in the other"""