hello_streamlit_hf.py

import streamlit as st
from datetime import datetime

st.title("👋 Personalized Greeter App")

name = st.text_input("Enter your name:")
age = st.slider("Select your age:", 1, 100, 25)

hour = datetime.now().hour
if hour < 12:
    greeting = "Good morning"
elif hour < 18:
    greeting = "Good afternoon"
else:
    greeting = "Good evening"

if name:
    st.markdown(f"### {greeting}, {name}!")
    st.write(f"You are {age} years old.")

    if age < 18:
        st.write("You're still young! 🧒")
    elif age < 50:
        st.write("You're in your prime! 💼")
    else:
        st.write("You're wise and experienced! 👴👵")

uploaded_file = st.file_uploader("Upload a profile picture (optional):", type=["png", "jpg", "jpeg"])
if uploaded_file:
    st.image(uploaded_file, caption="Nice picture!", use_column_width=True)