Update app.py

app.py

@@ -152,6 +152,7 @@ with tab1:
         st.warning("Please upload a CSV file to get started.")
     else:
         df = pd.read_csv(uploaded_file)
+    
 
         #Preview Uploaded Data
         st.subheader("Preview Uploaded Data")
@@ -284,9 +285,11 @@ with tab2:
             st.error("Please enter a question.")
 
     #generate the answer based on selected news content using the given model
+    df1 = pd.read_csv(uploaded_file)
+    
     st.markdown("---")
     st.header("Ask Questions Based on Your News Content")
-    context_1 = st.selectbox("Choose an article for the question:", df['content'].tolist())
+    context_1 = st.selectbox("Choose an article for the question:", df1['content'].tolist())
     
     question_1 = st.text_input("Enter your question:", key="question_input")
     if st.button("Get Answer", key="get_answer_1"):