Create app.py

app.py

@@ -0,0 +1,25 @@
+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")