Update app.py

app.py

@@ -142,17 +142,19 @@ if st.button('Submit'):
         st.error('Both URL and PDF is empty. Provide atleast one.')
     elif url.strip() != '' and file != None:
         st.error('Both URL and PDF is provided. Please provide only one (eiter URL or PDF).')
-    elif url.strip() != '':
-        glob_url = url
-        download_pdf(glob_url, 'corpus.pdf')
-        load_recommender('corpus.pdf')
     elif question.strip() == '':
         st.error('Question field is empty')
     else:
-        old_file_name = file.name
-        file_name = file.name
-        file_name = file_name[:-12] + file_name[-4:]
-        os.rename(old_file_name, file_name)
-        load_recommender(file_name)
+        if url.strip() != '':
+            glob_url = url
+            download_pdf(glob_url, 'corpus.pdf')
+            load_recommender('corpus.pdf')
+        elif file != None:
+            old_file_name = file.name
+            file_name = file.name
+            file_name = file_name[:-12] + file_name[-4:]
+            os.rename(old_file_name, file_name)
+            load_recommender(file_name)
+
         answer = generate_answer(question,openAI_key)
         st.text_area('The answer to your question is :', value=answer, height=200)