Update app.py

app.py

@@ -90,7 +90,7 @@ def train_step(file=None, start_idx=0):
         try:
             success, message = train_batch(dataloader)
             if not success:
-                return start_idx, "./checkpoint/model.pt  # Trả về start_idx nếu lỗi xảy ra
+                return start_idx, "./checkpoint/model.pt"  # Trả về start_idx nếu lỗi xảy ra
 
         except HTMLError as e:
             print(e)
@@ -105,7 +105,7 @@ def train_step(file=None, start_idx=0):
     if not os.path.exists('./checkpoint'):
         os.makedirs('./checkpoint')
     torch.save(model.state_dict(), "./checkpoint/model.pt")
-    return start_idx, "./checkpoint/model.pt
+    return start_idx, "./checkpoint/model.pt"
 
 
 if __name__ == "__main__":