Update app.py

app.py

@@ -60,11 +60,11 @@ def load_dataset(path):
         return [Example(**json.loads(l)).with_inputs("question") for l in f]
 
 def optimize(train_file, val_file):
+    global model  # 👈 حل الخطأ هنا
     trainset = load_dataset(train_file.name)
     valset = load_dataset(val_file.name)
     tp = MIPROv2(metric=evaluate.answer_exact_match, auto="light", num_threads=4)
     optimized = tp.compile(model, trainset=trainset, valset=valset)
-    global model
     model = optimized
     return "✅ تم تحسين النموذج!"