Update app.py

app.py

@@ -32,7 +32,7 @@ except Exception as e:
 def answer_question(question):
     try:
         question_embedding = embeddings.embed_query(question)
-        question_embedding_np = "\n".join(question_embedding)
+        question_embedding_np = "\n".join(map(str, question_embedding))
         docs_and_scores = db.similarity_search_with_score(question_embedding_np)
         # 正确处理 docs_and_scores 列表
         context = "\n".join([doc.page_content for doc, _ in docs_and_scores])  # 使用 join() 方法