test number entries

preprocess.py

@@ -98,6 +98,7 @@ def get_paths_diff_charts(song_dirs, indexed_vocabulary):
         # should be set in following loop
         number_of_charts_diffs = None
         all_paths_old_old = all_paths
+        list_items = os.listdir(song_dir)
         for item in os.listdir(song_dir):
             if item.endswith('.sm'):
                 opened_file = simfile.open(f"{song_dir}/{item}")
@@ -138,6 +139,7 @@ def get_paths_diff_charts(song_dirs, indexed_vocabulary):
         except AssertionError:
             print(f'Len paths {len(all_paths)}, Len difficulties {len(all_difficulties)}, Len charts {len(all_charts)}')
             print(f'Len paths old {len(all_paths_old)},  Len paths old old {len(all_paths_old_old)}, number_of_charts_diffs {number_of_charts_diffs}')
+            print(f'List items {list_items}')
             exit(1)
 
     #print(f"\n Number all paths: number songs = {len(all_paths)}, first 5 paths = {all_paths[:5]}")