import tkinter as tk from tkinter import messagebox, ttk

Employee database

employees = {}

Main window

root = tk.Tk() root.title("Employee Payroll System") root.geometry("600x500")

Functions

def add_employee(): emp_id = entry_id.get() name = entry_name.get() pay_rate = entry_rate.get()

if not emp_id or not name or not pay_rate:
    messagebox.showerror("Error", "Please fill all fields!")
    return

try:
    pay_rate = float(pay_rate)
    employees[emp_id] = {
        'name': name,
        'pay_rate': pay_rate,
        'hours': 0,
        'deductions': 0
    }
    messagebox.showinfo("Success", f"Employee {name} added successfully!")
    clear_entries()
    update_employee_list()
except ValueError:
    messagebox.showerror("Error", "Pay rate must be a number!")

def calculate_salary(): emp_id = combo_emp.get() if not emp_id or emp_id not in employees: messagebox.showerror("Error", "Please select a valid employee!") return

try:
    hours = float(entry_hours.get())
    deductions = float(entry_deductions.get())
    
    emp = employees[emp_id]
    emp['hours'] = hours
    emp['deductions'] = deductions
    
    gross_salary = hours * emp['pay_rate']
    net_salary = gross_salary - deductions
    
    result = f"Employee: {emp['name']}

" result += f"Hours Worked: {hours} " result += f"Pay Rate: ₹{emp['pay_rate']}/hour " result += f"Gross Salary: ₹{gross_salary:.2f} " result += f"Deductions: ₹{deductions:.2f} " result += f"Net Salary: ₹{net_salary:.2f}"

    messagebox.showinfo("Payroll Summary", result)
except ValueError:
    messagebox.showerror("Error", "Hours and deductions must be numbers!")

def clear_entries(): entry_id.delete(0, tk.END) entry_name.delete(0, tk.END) entry_rate.delete(0, tk.END) entry_hours.delete(0, tk.END) entry_deductions.delete(0, tk.END)

def update_employee_list(): combo_emp['values'] = list(employees.keys())

GUI Layout

frame1 = tk.LabelFrame(root, text="Add New Employee", padx=10, pady=10) frame1.pack(padx=10, pady=10, fill="both")

tk.Label(frame1, text="Employee ID:").grid(row=0, column=0, sticky="w", pady=5) entry_id = tk.Entry(frame1, width=30) entry_id.grid(row=0, column=1, pady=5)

tk.Label(frame1, text="Name:").grid(row=1, column=0, sticky="w", pady=5) entry_name = tk.Entry(frame1, width=30) entry_name.grid(row=1, column=1, pady=5)

tk.Label(frame1, text="Pay Rate (₹/hour):").grid(row=2, column=0, sticky="w", pady=5) entry_rate = tk.Entry(frame1, width=30) entry_rate.grid(row=2, column=1, pady=5)

btn_add = tk.Button(frame1, text="Add Employee", command=add_employee, bg="#4CAF50", fg="white") btn_add.grid(row=3, column=0, columnspan=2, pady=10)

frame2 = tk.LabelFrame(root, text="Calculate Payroll", padx=10, pady=10) frame2.pack(padx=10, pady=10, fill="both")

tk.Label(frame2, text="Select Employee:").grid(row=0, column=0, sticky="w", pady=5) combo_emp = ttk.Combobox(frame2, width=27, state="readonly") combo_emp.grid(row=0, column=1, pady=5)

tk.Label(frame2, text="Hours Worked:").grid(row=1, column=0, sticky="w", pady=5) entry_hours = tk.Entry(frame2, width=30) entry_hours.grid(row=1, column=1, pady=5)

tk.Label(frame2, text="Deductions (₹):").grid(row=2, column=0, sticky="w", pady=5) entry_deductions = tk.Entry(frame2, width=30) entry_deductions.grid(row=2, column=1, pady=5)

btn_calculate = tk.Button(frame2, text="Calculate Salary", command=calculate_salary, bg="#2196F3", fg="white") btn_calculate.grid(row=3, column=0, columnspan=2, pady=10)

root.mainloop()