Update app.py

app.py

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+import streamlit as st
+import numpy as np
+
+# Function to calculate renting cost
+def calculate_renting_cost(rent, annual_increase, years):
+    total_rent = 0
+    for year in range(years):
+        total_rent += rent * 12
+        rent += rent * (annual_increase / 100)
+    return total_rent
+
+# Function to calculate buying cost
+def calculate_buying_cost(property_price, down_payment_percentage, mortgage_rate, loan_years, tax, maintenance):
+    down_payment = property_price * (down_payment_percentage / 100)
+    loan_amount = property_price - down_payment
+    monthly_interest_rate = mortgage_rate / 100 / 12
+    months = loan_years * 12
+
+    # Monthly mortgage payment formula
+    monthly_payment = (loan_amount * monthly_interest_rate) / (1 - (1 + monthly_interest_rate) ** -months)
+    total_mortgage_cost = monthly_payment * months
+
+    # Additional costs
+    total_tax = tax * loan_years
+    total_maintenance = maintenance * loan_years
+
+    return total_mortgage_cost + total_tax + total_maintenance
+
+# Streamlit app
+st.title("Rent vs. Buy Calculator")
+st.write("Compare the cost of renting vs. buying a property to make an informed decision.")
+
+# User inputs
+st.header("Renting Details")
+rent = st.number_input("Monthly Rent ($)", value=1500.0, step=100.0)
+annual_increase = st.number_input("Annual Rent Increase (%)", value=3.0, step=0.1)
+years_renting = st.number_input("Number of Years Renting", value=5, step=1, min_value=1)
+
+st.header("Buying Details")
+property_price = st.number_input("Property Price ($)", value=300000.0, step=5000.0)
+down_payment_percentage = st.number_input("Down Payment (%)", value=20.0, step=1.0)
+mortgage_rate = st.number_input("Mortgage Interest Rate (%)", value=5.0, step=0.1)
+loan_years = st.number_input("Loan Tenure (Years)", value=30, step=1, min_value=1)
+tax = st.number_input("Annual Property Tax ($)", value=3000.0, step=100.0)
+maintenance = st.number_input("Annual Maintenance Costs ($)", value=2000.0, step=100.0)
+
+# Calculate costs
+if st.button("Calculate"):
+    renting_cost = calculate_renting_cost(rent, annual_increase, years_renting)
+    buying_cost = calculate_buying_cost(property_price, down_payment_percentage, mortgage_rate, loan_years, tax, maintenance)
+
+    st.header("Results")
+    st.write(f"**Total Renting Cost:** ${renting_cost:,.2f}")
+    st.write(f"**Total Buying Cost (including taxes and maintenance):** ${buying_cost:,.2f}")
+
+    if buying_cost < renting_cost:
+        st.success("Buying is more cost-effective than renting based on the inputs provided.")
+    else:
+        st.warning("Renting is more cost-effective than buying based on the inputs provided.")
+
+# Add footer
+st.write("\n---")
+st.write("App created using Streamlit and ready to deploy on Hugging Face Spaces!")