Sample code for: Qt Designer and Python: Build Your GUI Applications Faster (#790)

lpozo · claude · bzaczynski · web-flow · commit cbf5c359d77e · 2026-07-05T15:42:04.000+02:00
Update the sample text editor from PyQt5 to PyQt6 (app.py and the pyuic6-generated main_window_ui.py), add a standard top-level README plus a detailed app README in sample_editor/, and commit the generated module in ruff-formatted form so CI passes without linter-config changes.

Co-authored-by: Claude Opus 4.8 (1M context) &lt;noreply@anthropic.com&gt;
Co-authored-by: Bartosz Zaczyński &lt;bartosz.zaczynski@gmail.com&gt;
diff --git a/qt-designer-python/README.md b/qt-designer-python/README.md
@@ -1,30 +1,3 @@
-# Sample Text Editor
+# Qt Designer and Python: Build Your GUI Applications Faster
 
-A **sample text editor** that shows how to use Qt Designer to create GUI applications.
-
-## How to Run this Application
-
-To run this application, you need to [install `PyQt5`](https://realpython.com/python-pyqt-gui-calculator/#installing-pyqt) on your Python environment. To do that, you can run the following commands in a terminal or command prompt:
-
-```sh
-$ python3 -m venv ./venv
-$ source venv/bin/activate
-(venv) $ pip install PyQt5
-```
-
-Once you have [PyQt](https://www.riverbankcomputing.com/static/Docs/PyQt5/) installed, you can run the application by executing the following command:
-
-```sh
-(venv) $ cd sample_editor/
-(venv) $ python app.py
-```
-
-This command will launch the application, so you'll be able to experiment with it.
-
-## About the Author
-
-Leodanis Pozo Ramos – [@lpozo78](https://twitter.com/lpozo78) – lpozor78@gmail.com
-
-## License
-
-The set of icons used in this application are part of the [TurkinOS](https://github.com/llamaret/turkinos-icon) icon theme, which is distributed under the [GPL v3.0 license](https://github.com/llamaret/turkinos-icon/blob/master/LICENSE). See `ui/resources/LICENSE` for details.
+This folder provides the code examples for the Real Python tutorial [Qt Designer and Python: Build Your GUI Applications Faster](https://realpython.com/qt-designer-python/)
diff --git a/qt-designer-python/sample_editor/README.md b/qt-designer-python/sample_editor/README.md
@@ -0,0 +1,29 @@
+# Sample Text Editor
+
+A **sample text editor** that shows how to use Qt Designer to create GUI applications.
+
+## How to Run this Application
+
+To run this application, you need to [install `PyQt6`](https://realpython.com/python-pyqt-gui-calculator/#installing-pyqt) on your Python environment. To do that, you can run the following commands in a terminal or command prompt:
+
+```sh
+$ python3 -m venv ./venv
+$ source venv/bin/activate
+(venv) $ pip install PyQt6
+```
+
+Once you have [PyQt](https://www.riverbankcomputing.com/static/Docs/PyQt6/) installed, you can run the application by executing the following command:
+
+```sh
+(venv) $ python app.py
+```
+
+This command will launch the application, so you'll be able to experiment with it.
+
+## About the Author
+
+Leodanis Pozo Ramos – [@lpozo78](https://twitter.com/lpozo78) – lpozor78@gmail.com
+
+## License
+
+The set of icons used in this application are part of the [TurkinOS](https://github.com/llamaret/turkinos-icon) icon theme, which is distributed under the [GPL v3.0 license](https://github.com/llamaret/turkinos-icon/blob/master/LICENSE). See `ui/resources/LICENSE.txt` for details.
diff --git a/qt-designer-python/sample_editor/app.py b/qt-designer-python/sample_editor/app.py
@@ -1,8 +1,8 @@
 import sys
 
 from main_window_ui import Ui_MainWindow
-from PyQt5.QtWidgets import QApplication, QDialog, QMainWindow, QMessageBox
-from PyQt5.uic import loadUi
+from PyQt6.QtWidgets import QApplication, QDialog, QMainWindow, QMessageBox
+from PyQt6.uic import loadUi
 
 
 class Window(QMainWindow, Ui_MainWindow):
diff --git a/qt-designer-python/sample_editor/main_window_ui.py b/qt-designer-python/sample_editor/main_window_ui.py
@@ -1,122 +1,122 @@
-# -*- coding: utf-8 -*-
-
 # Form implementation generated from reading ui file 'ui/main_window.ui'
 #
-# Created by: PyQt5 UI code generator 5.15.1
+# Created by: PyQt6 UI code generator 6.11.0
 #
-# WARNING: Any manual changes made to this file will be lost when pyuic5 is
+# WARNING: Any manual changes made to this file will be lost when pyuic6 is
 # run again.  Do not edit this file unless you know what you are doing.
 
 
-from PyQt5 import QtCore, QtGui, QtWidgets
+from PyQt6 import QtCore, QtGui, QtWidgets
 
 
 class Ui_MainWindow(object):
     def setupUi(self, MainWindow):
         MainWindow.setObjectName("MainWindow")
         MainWindow.resize(413, 299)
-        self.centralwidget = QtWidgets.QWidget(MainWindow)
+        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
         self.centralwidget.setObjectName("centralwidget")
         self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)
         self.verticalLayout.setContentsMargins(1, 1, 1, 1)
         self.verticalLayout.setObjectName("verticalLayout")
-        self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
+        self.textEdit = QtWidgets.QTextEdit(parent=self.centralwidget)
         self.textEdit.setObjectName("textEdit")
         self.verticalLayout.addWidget(self.textEdit)
         MainWindow.setCentralWidget(self.centralwidget)
-        self.menubar = QtWidgets.QMenuBar(MainWindow)
+        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
         self.menubar.setGeometry(QtCore.QRect(0, 0, 413, 20))
         self.menubar.setObjectName("menubar")
-        self.menu_File = QtWidgets.QMenu(self.menubar)
+        self.menu_File = QtWidgets.QMenu(parent=self.menubar)
         self.menu_File.setObjectName("menu_File")
-        self.menuOpen_Recent = QtWidgets.QMenu(self.menu_File)
+        self.menuOpen_Recent = QtWidgets.QMenu(parent=self.menu_File)
         self.menuOpen_Recent.setObjectName("menuOpen_Recent")
-        self.menu_Edit = QtWidgets.QMenu(self.menubar)
+        self.menu_Edit = QtWidgets.QMenu(parent=self.menubar)
         self.menu_Edit.setObjectName("menu_Edit")
-        self.menu_Help = QtWidgets.QMenu(self.menubar)
+        self.menu_Help = QtWidgets.QMenu(parent=self.menubar)
         self.menu_Help.setObjectName("menu_Help")
         MainWindow.setMenuBar(self.menubar)
-        self.statusbar = QtWidgets.QStatusBar(MainWindow)
+        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
         self.statusbar.setObjectName("statusbar")
         MainWindow.setStatusBar(self.statusbar)
-        self.toolBar = QtWidgets.QToolBar(MainWindow)
+        self.toolBar = QtWidgets.QToolBar(parent=MainWindow)
         self.toolBar.setObjectName("toolBar")
-        MainWindow.addToolBar(QtCore.Qt.TopToolBarArea, self.toolBar)
-        self.action_New = QtWidgets.QAction(MainWindow)
+        MainWindow.addToolBar(
+            QtCore.Qt.ToolBarArea.TopToolBarArea, self.toolBar
+        )
+        self.action_New = QtGui.QAction(parent=MainWindow)
         icon = QtGui.QIcon()
         icon.addPixmap(
             QtGui.QPixmap("ui/resources/file-new.png"),
-            QtGui.QIcon.Normal,
-            QtGui.QIcon.Off,
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
         )
         self.action_New.setIcon(icon)
         self.action_New.setObjectName("action_New")
-        self.action_Open = QtWidgets.QAction(MainWindow)
+        self.action_Open = QtGui.QAction(parent=MainWindow)
         icon1 = QtGui.QIcon()
         icon1.addPixmap(
             QtGui.QPixmap("ui/resources/file-open.png"),
-            QtGui.QIcon.Normal,
-            QtGui.QIcon.Off,
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
         )
         self.action_Open.setIcon(icon1)
         self.action_Open.setObjectName("action_Open")
-        self.action_Save = QtWidgets.QAction(MainWindow)
+        self.action_Save = QtGui.QAction(parent=MainWindow)
         icon2 = QtGui.QIcon()
         icon2.addPixmap(
             QtGui.QPixmap("ui/resources/file-save.png"),
-            QtGui.QIcon.Normal,
-            QtGui.QIcon.Off,
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
         )
         self.action_Save.setIcon(icon2)
         self.action_Save.setObjectName("action_Save")
-        self.action_Exit = QtWidgets.QAction(MainWindow)
+        self.action_Exit = QtGui.QAction(parent=MainWindow)
         icon3 = QtGui.QIcon()
         icon3.addPixmap(
             QtGui.QPixmap("ui/resources/file-exit.png"),
-            QtGui.QIcon.Normal,
-            QtGui.QIcon.Off,
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
         )
         self.action_Exit.setIcon(icon3)
         self.action_Exit.setObjectName("action_Exit")
-        self.action_Copy = QtWidgets.QAction(MainWindow)
+        self.action_Copy = QtGui.QAction(parent=MainWindow)
         icon4 = QtGui.QIcon()
         icon4.addPixmap(
             QtGui.QPixmap("ui/resources/edit-copy.png"),
-            QtGui.QIcon.Normal,
-            QtGui.QIcon.Off,
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
         )
         self.action_Copy.setIcon(icon4)
         self.action_Copy.setObjectName("action_Copy")
-        self.action_Paste = QtWidgets.QAction(MainWindow)
+        self.action_Paste = QtGui.QAction(parent=MainWindow)
         icon5 = QtGui.QIcon()
         icon5.addPixmap(
             QtGui.QPixmap("ui/resources/edit-paste.png"),
-            QtGui.QIcon.Normal,
-            QtGui.QIcon.Off,
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
         )
         self.action_Paste.setIcon(icon5)
         self.action_Paste.setObjectName("action_Paste")
-        self.action_Cut = QtWidgets.QAction(MainWindow)
+        self.action_Cut = QtGui.QAction(parent=MainWindow)
         icon6 = QtGui.QIcon()
         icon6.addPixmap(
             QtGui.QPixmap("ui/resources/edit-cut.png"),
-            QtGui.QIcon.Normal,
-            QtGui.QIcon.Off,
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
         )
         self.action_Cut.setIcon(icon6)
         self.action_Cut.setObjectName("action_Cut")
-        self.actionOpen_All = QtWidgets.QAction(MainWindow)
+        self.actionOpen_All = QtGui.QAction(parent=MainWindow)
         self.actionOpen_All.setObjectName("actionOpen_All")
-        self.action_About = QtWidgets.QAction(MainWindow)
+        self.action_About = QtGui.QAction(parent=MainWindow)
         icon7 = QtGui.QIcon()
         icon7.addPixmap(
             QtGui.QPixmap("ui/resources/help-content.png"),
-            QtGui.QIcon.Normal,
-            QtGui.QIcon.Off,
+            QtGui.QIcon.Mode.Normal,
+            QtGui.QIcon.State.Off,
         )
         self.action_About.setIcon(icon7)
         self.action_About.setObjectName("action_About")
-        self.action_Find_Replace = QtWidgets.QAction(MainWindow)
+        self.action_Find_Replace = QtGui.QAction(parent=MainWindow)
         self.action_Find_Replace.setObjectName("action_Find_Replace")
         self.menuOpen_Recent.addAction(self.actionOpen_All)
         self.menu_File.addAction(self.action_New)
