expense_tracker_app.py

import tkinter as tk
from tkinter import ttk

expenses = []

def add_expense():
    name = name_entry.get()
    category = category_var.get()
    amount = amount_entry.get()

    if name and category and amount:
        expenses.append((name, category, amount))
        expense_list.insert("", "end", values=(name, category, amount))

        update_total()

        name_entry.delete(0, tk.END)
        amount_entry.delete(0, tk.END)

def update_total():
    total = 0
    for name, category, amount in expenses:
        total += float(amount)
    total_label.config(text=f"Total Spent: ₹{total}")

# Window
root = tk.Tk()
root.title("Expense Tracker")
root.geometry("450x450")
root.configure(bg="#1e1e2f")

# Title
title = tk.Label(
    root,
    text="Expense Tracker",
    font=("Helvetica", 18, "bold"),
    fg="white",
    bg="#1e1e2f"
)
title.pack(pady=15)

frame = tk.Frame(root, bg="#1e1e2f")
frame.pack()

# Name
tk.Label(frame, text="Expense Name", fg="white", bg="#1e1e2f").grid(row=0, column=0, pady=5, padx=10)
name_entry = tk.Entry(frame)
name_entry.grid(row=0, column=1, pady=5)

# Category
tk.Label(frame, text="Category", fg="white", bg="#1e1e2f").grid(row=1, column=0, pady=5, padx=10)
category_var = tk.StringVar()
category_dropdown = ttk.Combobox(frame, textvariable=category_var)
category_dropdown["values"] = ("Food", "Transport", "Shopping", "Bills", "Entertainment")
category_dropdown.grid(row=1, column=1)

# Amount
tk.Label(frame, text="Amount", fg="white", bg="#1e1e2f").grid(row=2, column=0, pady=5, padx=10)
amount_entry = tk.Entry(frame)
amount_entry.grid(row=2, column=1)

# Button
add_button = tk.Button(
    root,
    text="Add Expense",
    bg="#4CAF50",
    fg="white",
    font=("Arial", 10, "bold"),
    padx=10,
    pady=5,
    command=add_expense
)
add_button.pack(pady=15)

# Expense table
expense_list = ttk.Treeview(root, columns=("Name","Category","Amount"), show="headings", height=8)
expense_list.heading("Name", text="Name")
expense_list.heading("Category", text="Category")
expense_list.heading("Amount", text="Amount")
expense_list.pack(pady=10)

# Total
total_label = tk.Label(
    root,
    text="Total Spent: ₹0",
    font=("Arial", 12, "bold"),
    fg="#4CAF50",
    bg="#1e1e2f"
)
total_label.pack(pady=10)

root.mainloop()