app.py

import streamlit as st

# Title of the app
st.title("Simple Calculator")

# Input fields for numbers
num1 = st.number_input("Enter first number", value=0.0, format="%.2f")
num2 = st.number_input("Enter second number", value=0.0, format="%.2f")

# Select operation
operation = st.radio("Choose an operation", ["Addition", "Subtraction", "Multiplication", "Division"])

# Perform Calculation
result = None
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 = num1 / num2
        else:
            st.error("Error: Division by zero is not allowed!")

# Display Result
if result is not None:
    st.success(f"Result: {result}")