Create app.py

app.py

@@ -0,0 +1,11 @@
+import streamlit as st
+from datetime import datetime, date
+
+st.title("Age Calculator")
+
+birthdate = st.date_input("Select your birthdate:")
+
+if st.button("Calculate Age"):
+    today = date.today()
+    age = today.year - birthdate.year - ((today.month, today.day) < (birthdate.month, birthdate.day))
+    st.success(f"You are {age} years old.")