How to Build a GUI Calculator using Tkinter in Python?

How to Build a GUI Calculator using Tkinter in Python?

In this article today we will learn how to create a simple GUI calculator using Tkinter. We will understand the entire code step by step.

Getting started with our GUI Calculator using Tkinter

Before we start out, make sure you have the Tkinter library installed for Python. Tkinter is the standard GUI library for Python Programming language. When python is merged with Tkinter, it provides a fast and easy way to create Graphical User Interface applications. 

Tkinter provides a powerful object-oriented interface to the Tk GUI toolkit. If Tkinter is not pre-installed in your python then open your windows cmd and type in the following command.

pip install python-tk

Tkinter Messagebox

Messagebox is a widget in Python’s Tkinter library. It is used to display the message boxes in the python applications. This module is used to display a message using a certain number of functions.

Syntax:

messagebox.Name_of_the_function(title,message[, options])

Parameters:

  • Function_Name: This parameter is used to represents an appropriate message box function.
  • title: This parameter is a string which is shown as a title of a message box.
  • message: This parameter is the string to be displayed as a message on the message box.
  • options: There are two options that can be used are:
    1. default: This option is used to specify the default button like ABORT, RETRY, or IGNORE in the message box.
    2. parent: This option is used to specify the window on top of which the message box is to be displayed.

Structure of the GUI Calculator using Tkinter

Calculator

Python Tkinter Label: The Label is used to specify the container box where we can place the text or images. This widget is used to provide the message to the user about other widgets used in the python application.

Python Frames: