We can create a simple calculator with a graphical interface using the tkinter library in Python.
Here's an example of how to do it:

import tkinter as tk


def on_click(button_text):

    if button_text == "=":


            result = eval(display_var.get())




    elif button_text == "C":



        current_expression = display_var.get()

        display_var.set(current_expression + button_text)


# Create the main application window

app = tk.Tk()

app.title("Simple Calculator")


# Variable to store the expression being entered

display_var = tk.StringVar()



# Create the display area for the calculator

display = tk.Entry(app, textvariable=display_var, font=("Helvetica", 20), bd=10, justify="right")

display.grid(row=0, column=0, columnspan=4)


# Create buttons for numbers and operators

buttons = [

    "7", "8", "9", "/",

    "4", "5", "6", "*",

    "1", "2", "3", "-",

    "0", ".", "=", "+"



# Create and place the buttons in the grid

row_num = 1

col_num = 0

for button_text in buttons:

    button = tk.Button(app, text=button_text, font=("Helvetica", 20), padx=20, pady=10, command=lambda text=button_text: on_click(text))

    button.grid(row=row_num, column=col_num)

    col_num += 1

    if col_num > 3:

        col_num = 0

        row_num += 1


# Start the main event loop


Save the above code in a Python file (e.g., calculator.py) and run it. It will launch a simple calculator with a graphical interface. You can perform basic arithmetic calculations by clicking the buttons. Press "C" to clear the display, and "=" to evaluate the expression.

Note that this example assumes the user enters a valid expression, and the eval() function is used to evaluate the expression. In a real-world application, you may want to implement error handling and validation to ensure safe input handling.