Upload app.py

app.py

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+import streamlit as st
+import pandas as pd
+import plotly.express as px
+from datetime import datetime
+
+# Initialize session state for persistent data
+if 'expenses' not in st.session_state:
+    st.session_state.expenses = []
+if 'salary' not in st.session_state:
+    st.session_state.salary = 0
+
+# Set page title
+st.title("Expense Tracker")
+
+# Sidebar for user inputs
+with st.sidebar:
+    st.header("Enter Your Salary")
+    salary = st.number_input("Monthly Salary", value=st.session_state.salary, step=100)
+    st.session_state.salary = salary
+
+    st.header("Add Expense")
+    expense_date = st.date_input("Date", datetime.now())
+    expense_category = st.selectbox("Category", ["Food", "Transport", "Entertainment", "Bills", "Other"])
+    expense_amount = st.number_input("Amount", min_value=0.0, step=0.01)
+    add_expense = st.button("Add Expense")
+
+# Add expense to session state
+if add_expense:
+    st.session_state.expenses.append({
+        "date": expense_date,
+        "category": expense_category,
+        "amount": expense_amount
+    })
+
+# Convert expenses to DataFrame
+df = pd.DataFrame(st.session_state.expenses)
+
+# Calculate total expenses and current balance
+total_expenses = df["amount"].sum() if not df.empty else 0
+current_balance = st.session_state.salary - total_expenses
+
+# Main dashboard
+st.header("Dashboard")
+
+# Display current balance
+st.metric(label="Current Balance", value=f"{current_balance:,.2f}")
+
+# Show expenses DataFrame
+st.subheader("Expenses")
+if not df.empty:
+    st.dataframe(df)
+
+    # Plot expenses by category
+    fig = px.pie(df, names='category', values='amount', title='Expenses by Category')
+    st.plotly_chart(fig)
+
+    # Plot expenses over time
+    df['date'] = pd.to_datetime(df['date'])
+    fig = px.bar(df, x='date', y='amount', color='category', title='Expenses Over Time')
+    st.plotly_chart(fig)
+else:
+    st.write("No expenses added yet.")
+
+# Allow user to clear all data
+if st.button("Clear All Data"):
+    st.session_state.expenses = []
+    st.experimental_rerun()
+
+# Additional creativity: Monthly budget and savings goals
+st.sidebar.header("Monthly Budget and Savings Goals")
+monthly_budget = st.sidebar.number_input("Monthly Budget", min_value=0, value=0, step=100)
+savings_goal = st.sidebar.number_input("Savings Goal", min_value=0, value=0, step=100)
+
+# Display budget and savings status
+st.sidebar.metric(label="Total Expenses", value=f"${total_expenses:,.2f}")
+st.sidebar.metric(label="Monthly Budget Remaining", value=f"${monthly_budget - total_expenses:,.2f}")
+st.sidebar.metric(label="Savings Towards Goal", value=f"${current_balance - (monthly_budget - total_expenses):,.2f}")
+
+st.sidebar.text("Tip: Adjust your expenses to meet your savings goal!")