Fixed output of playlist_tracks example (#594)

Co-authored-by: Chris Danger <chris@The-Castle-Tower.local>

examples/playlist_tracks.py

@@ -12,9 +12,10 @@ while True:
                                  offset=offset,
                                  fields='items.track.id,total',
                                  additional_types=['track'])
-    pprint(response['items'])
-    offset = offset + len(response['items'])
-    print(offset, "/", response['total'])
-
+    
     if len(response['items']) == 0:
         break
+    
+    pprint(response['items'])
+    offset = offset + len(response['items'])
+    print(offset, "/", response['total'])