10 files changed, 45 insertions, 45 deletions
diff --git a/sources/pyside6/doc/tutorials/portingguide/chapter1/createdb.py b/sources/pyside6/doc/tutorials/portingguide/chapter1/createdb.py
index 46b5c312a..b3834edb2 100644
--- a/sources/pyside6/doc/tutorials/portingguide/chapter1/createdb.py
+++ b/sources/pyside6/doc/tutorials/portingguide/chapter1/createdb.py
@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 from __future__ import annotations
 
-from PySide6.QtSql import QSqlDatabase, QSqlError, QSqlQuery
+from PySide6.QtSql import QSqlDatabase, QSqlQuery
 from datetime import date
 
 
@@ -27,6 +27,7 @@ def add_author(q, name, birthdate):
     q.exec_()
     return q.lastInsertId()
 
+
 BOOKS_SQL = """
     create table books(id integer primary key, title varchar, author integer,
                        genre integer, year integer, rating integer)
@@ -48,6 +49,7 @@ INSERT_BOOK_SQL = """
                 values(?, ?, ?, ?, ?)
     """
 
+
 def init_db():
     """
     init_db()
@@ -74,12 +76,12 @@ def init_db():
     greeneId = add_author(q, "Graham Greene", date(1904, 10, 2))
     pratchettId = add_author(q, "Terry Pratchett", date(1948, 4, 28))
 
-    check(q.prepare,INSERT_GENRE_SQL)
+    check(q.prepare, INSERT_GENRE_SQL)
     sfiction = add_genre(q, "Science Fiction")
     fiction = add_genre(q, "Fiction")
     fantasy = add_genre(q, "Fantasy")
 
-    check(q.prepare,INSERT_BOOK_SQL)
+    check(q.prepare, INSERT_BOOK_SQL)
     add_book(q, "Foundation", 1951, asimovId, sfiction, 3)
     add_book(q, "Foundation and Empire", 1952, asimovId, sfiction, 4)
     add_book(q, "Second Foundation", 1953, asimovId, sfiction, 3)
diff --git a/sources/pyside6/doc/tutorials/portingguide/chapter2/bookdelegate.py b/sources/pyside6/doc/tutorials/portingguide/chapter2/bookdelegate.py
index 5e926baca..d83312e91 100644
--- a/sources/pyside6/doc/tutorials/portingguide/chapter2/bookdelegate.py
+++ b/sources/pyside6/doc/tutorials/portingguide/chapter2/bookdelegate.py
@@ -3,14 +3,12 @@
 from __future__ import annotations
 
 import copy
-import os
 from pathlib import Path
 
 from PySide6.QtSql import QSqlRelationalDelegate
-from PySide6.QtWidgets import (QItemDelegate, QSpinBox, QStyledItemDelegate,
-    QStyle, QStyleOptionViewItem)
-from PySide6.QtGui import QMouseEvent, QPixmap, QPalette, QImage
-from PySide6.QtCore import QEvent, QSize, Qt, QUrl
+from PySide6.QtWidgets import QSpinBox, QStyle
+from PySide6.QtGui import QPixmap, QPalette
+from PySide6.QtCore import QEvent, QSize, Qt
 
 
 class BookDelegate(QSqlRelationalDelegate):
@@ -49,7 +47,7 @@ class BookDelegate(QSqlRelationalDelegate):
 
             if option.state & QStyle.State_Selected:
                 painter.fillRect(option.rect,
-                    option.palette.color(color_group, QPalette.Highlight))
+                                 option.palette.color(color_group, QPalette.Highlight))
             rating = model.data(index, Qt.DisplayRole)
             width = self.star.width()
             height = self.star.height()
diff --git a/sources/pyside6/doc/tutorials/portingguide/chapter2/createdb.py b/sources/pyside6/doc/tutorials/portingguide/chapter2/createdb.py
index 46b5c312a..b3834edb2 100644
--- a/sources/pyside6/doc/tutorials/portingguide/chapter2/createdb.py
+++ b/sources/pyside6/doc/tutorials/portingguide/chapter2/createdb.py
@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 from __future__ import annotations
 
-from PySide6.QtSql import QSqlDatabase, QSqlError, QSqlQuery
+from PySide6.QtSql import QSqlDatabase, QSqlQuery
 from datetime import date
 
 
@@ -27,6 +27,7 @@ def add_author(q, name, birthdate):
     q.exec_()
     return q.lastInsertId()
 
+
 BOOKS_SQL = """
     create table books(id integer primary key, title varchar, author integer,
                        genre integer, year integer, rating integer)
@@ -48,6 +49,7 @@ INSERT_BOOK_SQL = """
                 values(?, ?, ?, ?, ?)
     """
 
+
 def init_db():
     """
     init_db()
@@ -74,12 +76,12 @@ def init_db():
     greeneId = add_author(q, "Graham Greene", date(1904, 10, 2))
     pratchettId = add_author(q, "Terry Pratchett", date(1948, 4, 28))
 
-    check(q.prepare,INSERT_GENRE_SQL)
+    check(q.prepare, INSERT_GENRE_SQL)
     sfiction = add_genre(q, "Science Fiction")
     fiction = add_genre(q, "Fiction")
     fantasy = add_genre(q, "Fantasy")
 
-    check(q.prepare,INSERT_BOOK_SQL)
+    check(q.prepare, INSERT_BOOK_SQL)
     add_book(q, "Foundation", 1951, asimovId, sfiction, 3)
     add_book(q, "Foundation and Empire", 1952, asimovId, sfiction, 4)
     add_book(q, "Second Foundation", 1953, asimovId, sfiction, 3)
diff --git a/sources/pyside6/doc/tutorials/portingguide/chapter2/main.py b/sources/pyside6/doc/tutorials/portingguide/chapter2/main.py
index 735d8e021..e125314de 100644
--- a/sources/pyside6/doc/tutorials/portingguide/chapter2/main.py
+++ b/sources/pyside6/doc/tutorials/portingguide/chapter2/main.py
@@ -4,7 +4,6 @@ from __future__ import annotations
 
 import sys
 
-from PySide6.QtCore import Qt
 from PySide6.QtSql import QSqlQueryModel
 from PySide6.QtWidgets import QTableView, QApplication
 
diff --git a/sources/pyside6/doc/tutorials/portingguide/chapter3/bookdelegate-old.py b/sources/pyside6/doc/tutorials/portingguide/chapter3/bookdelegate-old.py
index cfe52bba8..ecd0afd1f 100644
--- a/sources/pyside6/doc/tutorials/portingguide/chapter3/bookdelegate-old.py
+++ b/sources/pyside6/doc/tutorials/portingguide/chapter3/bookdelegate-old.py
@@ -3,14 +3,12 @@
 from __future__ import annotations
 
 import copy
-import os
 from pathlib import Path
 
 from PySide6.QtSql import QSqlRelationalDelegate
-from PySide6.QtWidgets import (QItemDelegate, QSpinBox, QStyledItemDelegate,
-    QStyle, QStyleOptionViewItem)
-from PySide6.QtGui import QMouseEvent, QPixmap, QPalette, QImage
-from PySide6.QtCore import QEvent, QSize, Qt, QUrl
+from PySide6.QtWidgets import QSpinBox, QStyle
+from PySide6.QtGui import QPixmap, QPalette
+from PySide6.QtCore import QEvent, QSize, Qt
 
 
 class BookDelegate(QSqlRelationalDelegate):
@@ -49,7 +47,7 @@ class BookDelegate(QSqlRelationalDelegate):
 
             if option.state & QStyle.State_Selected:
                 painter.fillRect(option.rect,
-                    option.palette.color(color_group, QPalette.Highlight))
+                                 option.palette.color(color_group, QPalette.Highlight))
             rating = model.data(index, Qt.DisplayRole)
             width = self.star.width()
             height = self.star.height()
diff --git a/sources/pyside6/doc/tutorials/portingguide/chapter3/bookdelegate.py b/sources/pyside6/doc/tutorials/portingguide/chapter3/bookdelegate.py
index 6aba9dd93..6abbc3343 100644
--- a/sources/pyside6/doc/tutorials/portingguide/chapter3/bookdelegate.py
+++ b/sources/pyside6/doc/tutorials/portingguide/chapter3/bookdelegate.py
@@ -2,12 +2,12 @@
 # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 from __future__ import annotations
 
-import copy, os
+import copy
 from PySide6.QtSql import QSqlRelationalDelegate
-from PySide6.QtWidgets import (QItemDelegate, QSpinBox, QStyledItemDelegate,
-    QStyle, QStyleOptionViewItem)
-from PySide6.QtGui import QMouseEvent, QPixmap, QPalette, QImage
-from PySide6.QtCore import QEvent, QSize, Qt, QUrl
+from PySide6.QtWidgets import QSpinBox, QStyle
+from PySide6.QtGui import QPixmap, QPalette
+from PySide6.QtCore import QEvent, QSize, Qt
+
 
 class BookDelegate(QSqlRelationalDelegate):
     """Books delegate to rate the books"""
@@ -44,7 +44,7 @@ class BookDelegate(QSqlRelationalDelegate):
 
             if option.state & QStyle.State_Selected:
                 painter.fillRect(option.rect,
-                    option.palette.color(color_group, QPalette.Highlight))
+                                 option.palette.color(color_group, QPalette.Highlight))
             rating = model.data(index, Qt.DisplayRole)
             width = self.star.width()
             height = self.star.height()
diff --git a/sources/pyside6/doc/tutorials/portingguide/chapter3/bookwindow.py b/sources/pyside6/doc/tutorials/portingguide/chapter3/bookwindow.py
index e115c321d..907af92c5 100644
--- a/sources/pyside6/doc/tutorials/portingguide/chapter3/bookwindow.py
+++ b/sources/pyside6/doc/tutorials/portingguide/chapter3/bookwindow.py
@@ -2,13 +2,11 @@
 # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 from __future__ import annotations
 
-from PySide6.QtGui import QAction
 from PySide6.QtWidgets import (QAbstractItemView, QDataWidgetMapper,
-    QHeaderView, QMainWindow, QMessageBox)
+                               QHeaderView, QMainWindow, QMessageBox)
 from PySide6.QtGui import QKeySequence
-from PySide6.QtSql import (QSqlRelation, QSqlRelationalTableModel, QSqlTableModel,
-    QSqlError)
-from PySide6.QtCore import QAbstractItemModel, QObject, QSize, Qt, Slot
+from PySide6.QtSql import QSqlRelation, QSqlRelationalTableModel, QSqlTableModel
+from PySide6.QtCore import Qt
 import createdb
 from ui_bookwindow import Ui_BookWindow
 from bookdelegate import BookDelegate
@@ -60,8 +58,8 @@ class BookWindow(QMainWindow, Ui_BookWindow):
         self.genreEdit.setModelColumn(model.relationModel(genre_idx).fieldIndex("name"))
 
         # Lock and prohibit resizing of the width of the rating column:
-        self.bookTable.horizontalHeader().setSectionResizeMode(model.fieldIndex("rating"),
-            QHeaderView.ResizeToContents)
+        header = self.bookTable.horizontalHeader()
+        header.setSectionResizeMode(model.fieldIndex("rating"), QHeaderView.ResizeToContents)
 
         mapper = QDataWidgetMapper(self)
         mapper.setModel(model)
@@ -78,23 +76,23 @@ class BookWindow(QMainWindow, Ui_BookWindow):
         self.bookTable.setCurrentIndex(model.index(0, 0))
         self.create_menubar()
 
-    def showError(err):
+    def showError(self, err):
         QMessageBox.critical(self, "Unable to initialize Database",
-                    "Error initializing database: " + err.text())
+                             "Error initializing database: " + err.text())
 
     def create_menubar(self):
         file_menu = self.menuBar().addMenu(self.tr("&File"))
         quit_action = file_menu.addAction(self.tr("&Quit"))
-        quit_action.triggered.connect(qApp.quit)
+        quit_action.triggered.connect(qApp.quit)  # noqa: F821
 
         help_menu = self.menuBar().addMenu(self.tr("&Help"))
         about_action = help_menu.addAction(self.tr("&About"))
         about_action.setShortcut(QKeySequence.HelpContents)
         about_action.triggered.connect(self.about)
         aboutQt_action = help_menu.addAction("&About Qt")
-        aboutQt_action.triggered.connect(qApp.aboutQt)
+        aboutQt_action.triggered.connect(qApp.aboutQt)  # noqa: F821
 
     def about(self):
-        QMessageBox.about(self, self.tr("About Books"),
-            self.tr("<p>The <b>Books</b> example shows how to use Qt SQL classes "
-                "with a model/view framework."))
+        message = self.tr("<p>The <b>Books</b> example shows how to use Qt SQL classes "
+                          "with a model/view framework.")
+        QMessageBox.about(self, self.tr("About Books"), message)
diff --git a/sources/pyside6/doc/tutorials/portingguide/chapter3/createdb.py b/sources/pyside6/doc/tutorials/portingguide/chapter3/createdb.py
index 46b5c312a..b3834edb2 100644
--- a/sources/pyside6/doc/tutorials/portingguide/chapter3/createdb.py
+++ b/sources/pyside6/doc/tutorials/portingguide/chapter3/createdb.py
@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 from __future__ import annotations
 
-from PySide6.QtSql import QSqlDatabase, QSqlError, QSqlQuery
+from PySide6.QtSql import QSqlDatabase, QSqlQuery
 from datetime import date
 
 
@@ -27,6 +27,7 @@ def add_author(q, name, birthdate):
     q.exec_()
     return q.lastInsertId()
 
+
 BOOKS_SQL = """
     create table books(id integer primary key, title varchar, author integer,
                        genre integer, year integer, rating integer)
@@ -48,6 +49,7 @@ INSERT_BOOK_SQL = """
                 values(?, ?, ?, ?, ?)
     """
 
+
 def init_db():
     """
     init_db()
@@ -74,12 +76,12 @@ def init_db():
     greeneId = add_author(q, "Graham Greene", date(1904, 10, 2))
     pratchettId = add_author(q, "Terry Pratchett", date(1948, 4, 28))
 
-    check(q.prepare,INSERT_GENRE_SQL)
+    check(q.prepare, INSERT_GENRE_SQL)
     sfiction = add_genre(q, "Science Fiction")
     fiction = add_genre(q, "Fiction")
     fantasy = add_genre(q, "Fantasy")
 
-    check(q.prepare,INSERT_BOOK_SQL)
+    check(q.prepare, INSERT_BOOK_SQL)
     add_book(q, "Foundation", 1951, asimovId, sfiction, 3)
     add_book(q, "Foundation and Empire", 1952, asimovId, sfiction, 4)
     add_book(q, "Second Foundation", 1953, asimovId, sfiction, 3)
diff --git a/sources/pyside6/doc/tutorials/portingguide/chapter3/main.py b/sources/pyside6/doc/tutorials/portingguide/chapter3/main.py
index 9af868772..4b4aee1a3 100644
--- a/sources/pyside6/doc/tutorials/portingguide/chapter3/main.py
+++ b/sources/pyside6/doc/tutorials/portingguide/chapter3/main.py
@@ -5,7 +5,7 @@ from __future__ import annotations
 import sys
 from PySide6.QtWidgets import QApplication
 from bookwindow import BookWindow
-import rc_books
+import rc_books  # noqa: F401
 
 if __name__ == "__main__":
     app = QApplication([])
diff --git a/sources/pyside6/doc/tutorials/portingguide/hello_world_ex.py b/sources/pyside6/doc/tutorials/portingguide/hello_world_ex.py
index 3b234bdf8..c4df30060 100644
--- a/sources/pyside6/doc/tutorials/portingguide/hello_world_ex.py
+++ b/sources/pyside6/doc/tutorials/portingguide/hello_world_ex.py
@@ -5,10 +5,10 @@ from __future__ import annotations
 import sys
 import random
 
-from PySide6.QtWidgets import (QApplication, QLabel,
-     QPushButton, QVBoxLayout, QWidget)
+from PySide6.QtWidgets import QApplication, QLabel, QPushButton, QVBoxLayout, QWidget
 from PySide6.QtCore import Qt, Slot
 
+
 class MyWidget(QWidget):
     def __init__(self):
         super().__init__()
@@ -30,6 +30,7 @@ class MyWidget(QWidget):
     def magic(self):
         self.text.setText(random.choice(self.hello))
 
+
 if __name__ == "__main__":
     app = QApplication(sys.argv)