Stupid proress bar

app.py

@@ -190,9 +190,9 @@ if searchButton:
 def answer_callback(question_query):
     global docs
     # global pdf_info
-    my_bar = st.progress(0, 'Please wait...')
+    my_bar = st.progress(0, "Please wait...")
     if docs is None:
-        my_bar.progress(0.2, 'Please wait...')
+        my_bar.progress(0.2, "Please wait...")
         pdf_info = st.session_state['pdf_info']
         print('buliding docs')
         docs = paperqa.Docs()
@@ -206,7 +206,7 @@ def answer_callback(question_query):
     # docs._build_faiss_index()
     answer = docs.query(question_query)
     # print(answer.formatted_answer)
-    my_bar.progress(1.0, 'Done!')
+    my_bar.progress(1.0, "Done!")
     return answer.formatted_answer