## Introduction

Graphical User Interfaces (GUIs) make it easy to create interactive applications. Python's `tkinter` library allows you to build GUI applications quickly. In this guide, we'll explore how to create a Python Calculator GUI using tkinter. We'll provide sample code to demonstrate the process.

## Prerequisites

Before you start building a Python Calculator GUI, ensure you have the following prerequisites:

• Python installed on your system.
• Basic knowledge of Python programming.

## Creating a Python Calculator GUI

Let's create a basic Python Calculator GUI using tkinter. In this example, we'll build a simple calculator with a graphical interface.

``import tkinter as tk# Function to update the displaydef update_display(value):    current_value = display_var.get()    display_var.set(current_value + value)# Function to perform the calculationdef calculate():    try:        result = eval(display_var.get())        display_var.set(result)    except Exception as e:        display_var.set("Error")# Create the main application windowroot = tk.Tk()root.title("Python Calculator")# Create a display entry widgetdisplay_var = tk.StringVar()display = tk.Entry(root, textvariable=display_var, font=("Arial", 20))display.grid(row=0, column=0, columnspan=4)# Create calculator buttonsbuttons = [    '7', '8', '9', '/',    '4', '5', '6', '*',    '1', '2', '3', '-',    '0', 'C', '=', '+']row, col = 1, 0for button in buttons:    tk.Button(root, text=button, font=("Arial", 16), command=lambda b=button: update_display(b) if b != '=' else calculate()).grid(row=row, column=col)    col += 1    if col > 3:        col = 0        row += 1# Run the tkinter main looproot.mainloop()`        `

## Using the Calculator

After running the Python Calculator GUI code, you can use the graphical interface to perform calculations by clicking the buttons.

## Conclusion

Building a Python Calculator GUI using tkinter is a practical example of GUI application development. You can expand this project by adding more advanced features, improving the user interface, and customizing the calculator.