add none

app.py

@@ -80,9 +80,11 @@ def predict(input, chatbot, messages, idx, answer, story_key, answer_key, known,
     print(f"Start judge: {time.time() - start}")
     for key in story_key:
         key = key.strip()
+        if key == '':
+            continue
         if ' ' in key:
             key = key.split(' ')[1]
-        bleu = sentence_bleu(key, input.replace('？', '。'), weights=(1, 0, 0, 0))
+        bleu = sentence_bleu([key], input.replace('？', '。'), weights=(1, 0, 0, 0))
         if bleu > 0.85:
             response = '这是汤面中已有的信息，请提一个新问题。'
             llm = False
@@ -91,9 +93,11 @@ def predict(input, chatbot, messages, idx, answer, story_key, answer_key, known,
     if llm:
         for key in history:
             key = key.strip()
+            if key == '':
+                continue
             if ' ' in key:
                 key = key.split(' ')[1]
-            bleu = sentence_bleu(key, input.replace('？', '。'), weights=(1, 0, 0, 0))
+            bleu = sentence_bleu([key], input.replace('？', '。'), weights=(1, 0, 0, 0))
             if bleu > 0.85:
                 response = '这是已经提问过的内容，请提一个新问题。'
                 llm = False
@@ -170,6 +174,8 @@ def predict(input, chatbot, messages, idx, answer, story_key, answer_key, known,
                 merge = summary
             for key in answer_key:
                 key = key.strip()
+                if key == '':
+                    continue
                 if ' ' in key:
                     key1 = key.split(' ')[1]
                 else: