Update chatbot_rag.py

chatbot_rag.py

@@ -144,12 +144,12 @@ def build_qa():
             "question": RunnablePassthrough(),
         }
         | prompt
-        | (lambda x: str(x))       # convert PromptTemplate value to str
         | llm
-        | (lambda x: hf_to_str(x)) # clean HF output
+        | (lambda x: hf_to_str(x))
         | StrOutputParser()
     )
 
+
     print("✅ QA pipeline ready.")
     return rag_chain