app.py

import streamlit as st
import pandas as pd

st.title("💰 Expense Tracker App")

if "expenses" not in st.session_state:
    st.session_state.expenses = []

expense_name = st.text_input("Enter Expense Name")
expense_amount = st.number_input("Enter Amount", min_value=0.0)

if st.button("Add Expense"):
    if expense_name and expense_amount:
        st.session_state.expenses.append({
            "Name": expense_name,
            "Amount": expense_amount
        })
        st.success("Expense Added Successfully!")
    else:
        st.warning("Please enter both name and amount.")

if st.session_state.expenses:
    df = pd.DataFrame(st.session_state.expenses)
    st.subheader("Your Expenses")
    st.dataframe(df)

    total = df["Amount"].sum()
    st.subheader(f"Total Expense: ₹ {total}")