How to create a pop-up window in a GUI in Python?

Table of Contents

• Introduction
• Creating a Pop-Up Window in Tkinter
  • Example: Basic Pop-Up Window in Tkinter
  • Explanation
• Creating a Pop-Up Window in PyQt
  • Example: Basic Pop-Up Window in PyQt
  • Explanation
• Practical Example: Confirmation Pop-Up
  • Tkinter Confirmation Pop-Up Example
  • PyQt Confirmation Pop-Up Example
• Conclusion

Introduction

Creating a pop-up window in a GUI application is a common requirement for displaying messages, alerts, or additional options to users. In Python, popular libraries like Tkinter and PyQt offer straightforward methods for implementing pop-up windows. This guide will explore how to create a pop-up window in both Tkinter and PyQt, providing practical examples for each.

Creating a Pop-Up Window in Tkinter

Tkinter provides a simple way to create pop-up windows using the Toplevel widget. This widget creates a new window that is independent of the main application window.

Example: Basic Pop-Up Window in Tkinter

Explanation

• Toplevel Widget: The Toplevel() class creates a new window.
• Label and Button: You can add widgets like Label and Button to the pop-up window.
• Close Button: The destroy() method is used to close the pop-up window.

Creating a Pop-Up Window in PyQt

In PyQt, pop-up windows can be created using QDialog, which is designed specifically for dialog windows.

Example: Basic Pop-Up Window in PyQt

Explanation

• QDialog Class: The QDialog class creates a dialog window that can be modal or non-modal.
• exec_() Method: Calling exec_() displays the dialog in a modal fashion, blocking input to other windows until the dialog is closed.
• Layout: Use layout managers like QVBoxLayout to organize widgets in the dialog.

Practical Example: Confirmation Pop-Up

A common use case for pop-up windows is to confirm user actions. Let's create a confirmation dialog in both Tkinter and PyQt.

Tkinter Confirmation Pop-Up Example

PyQt Confirmation Pop-Up Example

Conclusion

Creating pop-up windows in Python GUI applications using Tkinter and PyQt is straightforward. Tkinter uses the Toplevel widget for independent windows, while PyQt employs QDialog for dialog boxes. Both libraries provide mechanisms to display messages and collect user input, making them essential tools for enhancing user interaction in applications. Whether you're showing simple notifications or complex confirmations, mastering pop-up windows is key to developing user-friendly GUIs in Python.