Update app.py

app.py

@@ -1,3 +1,23 @@
-import streamlit as staticmethod
+import streamlit as st
+import time
 
-st.markdown('Hello World')
+def main():
+    st.title("File Upload Example")
+
+    # File upload section
+    uploaded_file = st.file_uploader("Upload a file")
+
+    if uploaded_file is not None:
+        st.markdown("### Uploaded File Contents:")
+        file_contents = uploaded_file.read().decode("utf-8")
+        st.markdown(file_contents)
+
+    # Wait for 5 seconds
+    with st.spinner("Processing..."):
+        time.sleep(5)
+
+    # Show completed message
+    st.success("Processing completed!")
+
+if __name__ == "__main__":
+    main()