Update app.py

app.py

@@ -35,12 +35,16 @@ def text_extract(file):
     db = FAISS.from_texts(text_splitter, embeddings);
     retriever = db.as_retriever(search_type="similarity", search_kwargs={"k": 2})
     llm=GooglePalm(google_api_key=google_api)
-    qa = RetrievalQA.from_chain_type(
-        llm=llm, chain_type="stuff", retriever=retriever, return_source_documents=True
-    )
-    result=qa.invoke("hi")
+    try:
+        qa = RetrievalQA.from_chain_type(
+            llm=llm, chain_type="stuff", retriever=retriever, return_source_documents=True
+        )
+        result=qa.invoke("hi")
+    except:
+        result="hi"
+        
     
-    return "hi"
+    return result['result']
     
 
 with gr.Blocks() as demo: