Budget Planner with Visualization

 import pandas as pd

import matplotlib.pyplot as plt

from tkinter import *

from tkinter import ttk, messagebox

import os

from datetime import datetime

# Create main window

root = Tk()

root.title("Budget Planner with Visualization")

root.geometry("800x600")

# CSV file name

filename = "budget_data.csv"

# Load existing data

if os.path.exists(filename):

    df = pd.read_csv(filename)

else:

    df = pd.DataFrame(columns=["Date", "Category", "Type", "Amount"])

# Function to add entry

def add_entry():

    date = date_entry.get()

    category = category_entry.get()

    ttype = type_combo.get()

    amount = amount_entry.get()

    if not date or not category or not ttype or not amount:

        messagebox.showerror("Input Error", "All fields are required.")

        return

    try:

        datetime.strptime(date, "%Y-%m-%d")

        amount = float(amount)

    except:

        messagebox.showerror("Input Error", "Invalid date or amount.")

        return

    new_entry = {"Date": date, "Category": category, "Type": ttype, "Amount": amount}

    global df

    df = pd.concat([df, pd.DataFrame([new_entry])], ignore_index=True)

    df.to_csv(filename, index=False)

    update_table()

    messagebox.showinfo("Success", "Entry added successfully!")

# Function to update table

def update_table():

    for row in tree.get_children():

        tree.delete(row)

    for index, row in df.iterrows():

        tree.insert("", "end", values=list(row))

# Function to show chart

def show_chart():

    try:

        expense_df = df[df["Type"] == "Expense"]

        summary = expense_df.groupby("Category")["Amount"].sum()

        summary.plot.pie(autopct="%1.1f%%", startangle=90)

        plt.title("Expenses by Category")

        plt.ylabel("")

        plt.show()

    except Exception as e:

        messagebox.showerror("Chart Error", str(e))

# Input Form

form_frame = Frame(root)

form_frame.pack(pady=10)

Label(form_frame, text="Date (YYYY-MM-DD)").grid(row=0, column=0, padx=5)

date_entry = Entry(form_frame)

date_entry.grid(row=0, column=1, padx=5)

Label(form_frame, text="Category").grid(row=0, column=2, padx=5)

category_entry = Entry(form_frame)

category_entry.grid(row=0, column=3, padx=5)

Label(form_frame, text="Type").grid(row=1, column=0, padx=5)

type_combo = ttk.Combobox(form_frame, values=["Income", "Expense"], state="readonly")

type_combo.grid(row=1, column=1, padx=5)

Label(form_frame, text="Amount").grid(row=1, column=2, padx=5)

amount_entry = Entry(form_frame)

amount_entry.grid(row=1, column=3, padx=5)

Button(form_frame, text="Add Entry", command=add_entry).grid(row=2, column=0, columnspan=4, pady=10)

# Treeview

tree = ttk.Treeview(root, columns=["Date", "Category", "Type", "Amount"], show="headings")

for col in ["Date", "Category", "Type", "Amount"]:

    tree.heading(col, text=col)

    tree.column(col, width=150)

tree.pack(fill=BOTH, expand=True, pady=10)

# Show chart button

Button(root, text="Show Expense Chart", command=show_chart).pack(pady=10)

# Load initial table

update_table()

root.mainloop()