Update app.py

app.py

@@ -2,24 +2,19 @@ import streamlit as st
 import threading
 import time
 
-
 def long_running_task():
     time.sleep(5)
 
-
 @st.cache_resource
 def get_global_lock():
     return threading.Lock()
 
-
 global_lock = get_global_lock()
 
-
-st.write("This is a long running task")
-
-with st.spinner("Running long running task"):
-    with global_lock:
-        st.write("Task started")
-        long_running_task()
-
-st.write("Task completed")
+# Add a button to start the task
+if st.button('Start long running task'):
+    with st.spinner("Running long running task"):
+        with global_lock:
+            st.write("Task started")
+            long_running_task()
+            st.write("Task completed")