use pre-commit

Former-commit-id: 7cfede95df22a9ff236788f04159b6b16b8d04bb

scripts/cal_ppl.py

@@ -1,4 +1,3 @@
-# coding=utf-8
 # Copyright 2024 the LlamaFactory team.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -100,7 +99,7 @@ def calculate_ppl(
             tokenizer=tokenizer, label_pad_token_id=IGNORE_INDEX, train_on_prompt=train_on_prompt
         )
     else:
-        raise NotImplementedError("Stage does not supported: {}.".format(stage))
+        raise NotImplementedError(f"Stage does not supported: {stage}.")
 
     dataloader = DataLoader(trainset, batch_size, shuffle=False, collate_fn=data_collator, pin_memory=True)
     criterion = torch.nn.CrossEntropyLoss(reduction="none")
@@ -125,8 +124,8 @@ def calculate_ppl(
     with open(save_name, "w", encoding="utf-8") as f:
         json.dump(perplexities, f, indent=2)
 
-    print("Average perplexity is {:.2f}".format(total_ppl / len(perplexities)))
-    print("Perplexities have been saved at {}.".format(save_name))
+    print(f"Average perplexity is {total_ppl / len(perplexities):.2f}")
+    print(f"Perplexities have been saved at {save_name}.")
 
 
 if __name__ == "__main__":