app.py

import streamlit as st

# Streamlit App Title
st.title("Simple Calculator")

# User Input
num1 = st.number_input("Enter first number", value=0.0, step=0.1)
num2 = st.number_input("Enter second number", value=0.0, step=0.1)

# Operation Selection
operation = st.selectbox("Choose operation", ["Addition", "Subtraction", "Multiplication", "Division"])

# Perform Calculation
if st.button("Calculate"):
    if operation == "Addition":
        result = num1 + num2
    elif operation == "Subtraction":
        result = num1 - num2
    elif operation == "Multiplication":
        result = num1 * num2
    elif operation == "Division":
        if num2 == 0:
            result = "Error! Division by zero."
        else:
            result = num1 / num2
    st.success(f"Result: {result}")