Update app.py

app.py

@@ -1 +1,17 @@
-print ('Hello World')
+import streamlit as st 
+import time 
+def main(): 
+    st.title("File Upload and Display")
+# File upload 
+uploaded_file = st.file_uploader("Upload a file") 
+if uploaded_file is not None: 
+    # Display file contents using 
+    st.markdown() file_contents = uploaded_file.read().decode("utf-8") 
+    st.markdown("### File Contents:") 
+    st.markdown(f"```{file_contents}```") 
+# Wait for 5 seconds 
+time.sleep(5) 
+# Show completed message 
+st.success("File processing completed!") 
+if __name__ == "__main__": 
+    main()