Update app.py

app.py

@@ -1,9 +1,9 @@
 import os
 import gradio as gr
 import asyncio
-from langchain import PromptTemplate
-from langchain.chains.question_answering import load_qa_chain
-from langchain.document_loaders import PyPDFLoader
+from langchain_core.prompts import PromptTemplate
+from langchain_community.output_parsers.rail_parser import GuardrailsOutputParser
+from langchain_community.document_loaders import PyPDFLoader
 from langchain_google_genai import ChatGoogleGenerativeAI
 import google.generativeai as genai
 
@@ -42,5 +42,3 @@ async def pdf_qa(file, question):
 
 # Create Gradio Interface
 gr.Interface(fn=pdf_qa, inputs=[input_file, input_question], outputs=output_text, title="PDF Question Answering System", description="Upload a PDF file and ask questions about the content.").launch()
-
-