Update app.py

app.py

@@ -1,4 +1,5 @@
 import streamlit as st
+import time
 
 import cv2
 import pandas
@@ -47,6 +48,6 @@ if uploaded_files:
             
     if st.button("Clear uploaded files"):
         state["file_uploader_key"] += 1
-                #uploaded_files = None
+        time.sleep(.5)
         st.experimental_rerun()