Update app.py

app.py

@@ -19,7 +19,7 @@ def avp():
 
     bazis_out = incoming.get("bazis_out", {})
 
-    for key in bazis_out:
+    for key in bazis_out.keys():
         if isinstance(bazis_out[key], int) and bazis_out[key] > 0:
             bazis_out[key] -= 1