Update appStore/keyword_search.py

appStore/keyword_search.py

@@ -72,41 +72,38 @@ def app():
             """)
 
         st.markdown("")
-    #st.markdown("")
-    #st.markdown("##  📌 Step One: Upload document ")
-    
+
     with st.container():
-        file = st.session_state['file']
         question = st.text_input("Please enter your question here, we will look for the answer in the document.",
                                          value="What particular risks does climate change pose for women?",)
         if st.button("Find them."):
-        #file = st.file_uploader('Upload PDF File', type=['pdf', 'docx', 'txt'])
-     
-            with st.spinner("👑 Performing semantic search on"):#+file.name+"..."):
-                try:
-                    msg = 'Asked ' + question
-                    logging.info(msg)
-                    pipeline = st.session_state['pipeline']
-                    results = ask_question(question,pipeline) 
-                    st.write('## Top Results')
-                    #st.write(results)
-                    for count, result in enumerate(results):
-                        if result["answer"]:
-                            answer, context = result["answer"], result["context"]
-                            start_idx = context.find(answer)
-                            end_idx = start_idx + len(answer)
-                            st.write(
-                                markdown(context[:start_idx] + str(annotation(body=answer, label="ANSWER", background="#964448", color='#ffffff')) + context[end_idx:]),
-                                unsafe_allow_html=True,
-                            )
-                            st.markdown(f"**Relevance:** {result['relevance']}")
-                        else:
-                            st.info(
-                                "🤔    Haystack is unsure whether any of the documents contain an answer to your question. Try to reformulate it!"
-                            )
-                       
-                except Exception as e:
-                    logging.exception(e)
+            pipeline = st.session_state['pipeline
+            if  pipeline is not None:
+                with st.spinner("👑 Performing semantic search on"):#+file.name+"..."):
+                    try:
+                        msg = 'Asked ' + question
+                        logging.info(msg)
+                        pipeline = st.session_state['pipeline']
+                        results = ask_question(question,pipeline) 
+                        st.write('## Top Results')
+                        #st.write(results)
+                        for count, result in enumerate(results):
+                            if result["answer"]:
+                                answer, context = result["answer"], result["context"]
+                                start_idx = context.find(answer)
+                                end_idx = start_idx + len(answer)
+                                st.write(
+                                    markdown(context[:start_idx] + str(annotation(body=answer, label="ANSWER", background="#964448", color='#ffffff')) + context[end_idx:]),
+                                    unsafe_allow_html=True,
+                                )
+                                st.markdown(f"**Relevance:** {result['relevance']}")
+                            else:
+                                st.info(
+                                    "🤔    Haystack is unsure whether any of the documents contain an answer to your question. Try to reformulate it!"
+                                )
+                           
+                    except Exception as e:
+                        logging.exception(e)
                     
             else:
                 st.info("🤔 No document found, please try to upload it at the sidebar!"