Update app.py

app.py

@@ -21,8 +21,16 @@ with st.form(key = "search_form"):
   submit = st.form_submit_button(label = "Search")
   
 lst = search(query=query, sort_by=sort_by, sort_order=order_by)
-
+if len(lst) != 0:
+  label = "Papers for" + query
+  with st.form(key = "paper_form"):
+    paper = st.selectbox(label = label, options=lst)
+    submit_paper = st.form_submit_button(label = "Fetch Paper")
+else:
+  with st.form(key = "paper_form"):
+    paper = st.selectbox(label = "NO PAPERS FOUND", options=lst)
+    submit_paper = st.form_submit_button(label = "Fetch Paper")
+  
 with st.form(key = "paper_form"):
-  paper = st.selectbox(label = "Papers", options=lst)
-  submit_paper = st.form_submit_button(label = "Fetch Paper")
+