Update app.py

app.py

@@ -44,7 +44,7 @@ def heart_beat():
     """
     Heartbeat function to track whether the session is alive
     """
-    thread = threading.Timer(interval=2, function=heart_beat)
+    thread = threading.Timer(interval=5, function=heart_beat)
 
     # insert context to the current thread, needed for
     # getting session specific attributes like st.session_state
@@ -62,10 +62,9 @@ def heart_beat():
         logging.info(f"{ctx.session_id} is alive.")
         thread.start()
     else:
-        print(st.session_state.uniq)
         if os.path.isdir(f"removefolder/{st.session_state.uniq}"):
             shutil.rmtree(f"removefolder/{st.session_state.uniq}")
-        logging.info(f"{ctx.session_id} is gone.")
+            logging.info(f"{ctx.session_id} is gone.")
         return
 
 # JavaScript to detect browser exit
@@ -167,11 +166,11 @@ def main():
         ########
         reload_bt = st.empty()
         if reload_bt.button("Upload another PDF file"):
-            for key in st.session_state.keys():
-                if key == "count" or key == "temp" or key == "lang":
-                    continue
-                else:
-                    del st.session_state[key]
+            #for key in st.session_state.keys():
+            #    if key == "count" or key == "temp" or key == "lang":
+            #        continue
+            #    else:
+            #        del st.session_state[key]
             shutil.rmtree(f"removefolder/{temp_dir}")
             # page reload
             streamlit_js_eval(js_expressions="parent.window.location.reload()")