appears to be working

lastfm_helpers.py

@@ -4,6 +4,10 @@ from collections import defaultdict
 from datetime import datetime, timedelta
 
 def lf_request(method, **params):
+    # Fixa 'from_' → 'from' och 'to_' → 'to' (Last.fm accepterar inte Python-säkra namn)
+    for alt, real in (("from_", "from"), ("to_", "to")):
+        if alt in params:
+            params[real] = params.pop(alt)
     url = "https://ws.audioscrobbler.com/2.0/"
     params.update({
         "method": method,