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A Guide to PyQt6 for Beginners

Creating a More Advanced Notepad GUI

Explore how to develop a functional notepad application using PyQt6 by creating menus, toolbars, and dialog boxes. Understand how to implement text editing methods such as undo, redo, and text searching, plus customize fonts and background colors to enhance usability.

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Creating the notepad GUI

The QTextEdit widget already supports both plain and rich text formatting. In this program, you will learn how to develop a notepad application using various QTextEdit methods, including undo() and redo(), as well as the different dialog classes. This tool lets you save your writing in plain text or HTML if you want to keep rich text content.

Firstly, we start by importing the modules required for the application.

Python 3.8
import sys
from PyQt6.QtWidgets import (QApplication, QMainWindow, QMessageBox, QTextEdit, QFileDialog, QInputDialog, QFontDialog, QColorDialog)
from PyQt6.QtGui import QIcon, QTextCursor, QColor, QAction
from PyQt6.QtCore import Qt

Then we initialize the window and display its contents on ...