Examples: Fix some space-related flake warnings

Task-number: PYSIDE-1112
Change-Id: Ib8991199e4822673d6a25cba0023dbe3b03f5938
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>

71 files changed, 217 insertions, 106 deletions

diff --git a/examples/3d/simple3d/simple3d.py b/examples/3d/simple3d/simple3d.py
index ab6dc0ca0..15bd1600b 100644
--- a/examples/3d/simple3d/simple3d.py
+++ b/examples/3d/simple3d/simple3d.py
@@ -42,11 +42,12 @@
 """PySide6 port of the qt3d/simple-cpp example from Qt v5.x"""
 
 import sys
-from PySide6.QtCore import(Property, QObject, QPropertyAnimation, Signal)
+from PySide6.QtCore import (Property, QObject, QPropertyAnimation, Signal)
 from PySide6.QtGui import (QGuiApplication, QMatrix4x4, QQuaternion, QVector3D)
 from PySide6.Qt3DCore import (Qt3DCore)
 from PySide6.Qt3DExtras import (Qt3DExtras)
 
+
 class OrbitTransformController(QObject):
     def __init__(self, parent):
         super().__init__(parent)
@@ -91,6 +92,7 @@ class OrbitTransformController(QObject):
     angle = Property(float, getAngle, setAngle, notify=angleChanged)
     radius = Property(float, getRadius, setRadius, notify=radiusChanged)
 
+
 class Window(Qt3DExtras.Qt3DWindow):
     def __init__(self):
         super().__init__()
@@ -155,6 +157,7 @@ class Window(Qt3DExtras.Qt3DWindow):
         self.sphereEntity.addComponent(self.sphereTransform)
         self.sphereEntity.addComponent(self.material)
 
+
 if __name__ == '__main__':
     app = QGuiApplication(sys.argv)
     view = Window()
diff --git a/examples/axcontainer/axviewer/axviewer.py b/examples/axcontainer/axviewer/axviewer.py
index 7edb99046..50a2d3277 100644
--- a/examples/axcontainer/axviewer/axviewer.py
+++ b/examples/axcontainer/axviewer/axviewer.py
@@ -47,6 +47,7 @@ from PySide6.QtGui import QAction
 from PySide6.QtWidgets import (QApplication, QDialog,
     QMainWindow, QMessageBox, QToolBar)
 
+
 class MainWindow(QMainWindow):
 
     def __init__(self):
@@ -74,6 +75,7 @@ class MainWindow(QMainWindow):
             if not self.axWidget.setControl(clsid):
                 QMessageBox.warning(self, "AxViewer", "Unable to load " + clsid + ".")
 
+
 if __name__ == '__main__':
     app = QApplication(sys.argv)
     mainWin = MainWindow()
diff --git a/examples/charts/audio/audio.py b/examples/charts/audio/audio.py
index 2d4c1a552..13b616c65 100644
--- a/examples/charts/audio/audio.py
+++ b/examples/charts/audio/audio.py
@@ -51,6 +51,7 @@ from PySide6.QtWidgets import QApplication, QMainWindow, QMessageBox
 sampleCount = 2000
 resolution = 4
 
+
 class MainWindow(QMainWindow):
     def __init__(self, device):
         super().__init__()
@@ -109,6 +110,7 @@ class MainWindow(QMainWindow):
             dataIndex = dataIndex + resolution
         self.series.replace(self.buffer)
 
+
 if __name__ == '__main__':
     app = QApplication(sys.argv)
 
diff --git a/examples/charts/callout/callout.py b/examples/charts/callout/callout.py
index 219f44597..e39ef2528 100644
--- a/examples/charts/callout/callout.py
+++ b/examples/charts/callout/callout.py
@@ -138,7 +138,7 @@ class Callout(QGraphicsItem):
         self._text = text
         metrics = QFontMetrics(self._font)
         self._textRect = QRectF(metrics.boundingRect(
-            QRect(0.0, 0.0, 150.0, 150.0),Qt.AlignLeft, self._text))
+            QRect(0.0, 0.0, 150.0, 150.0), Qt.AlignLeft, self._text))
         self._textRect.translate(5, 5)
         self.prepareGeometryChange()
         self._rect = self._textRect.adjusted(-5, -5, 5, 5)
@@ -153,7 +153,7 @@ class Callout(QGraphicsItem):
 
 
 class View(QGraphicsView):
-    def __init__(self, parent = None):
+    def __init__(self, parent=None):
         super().__init__(parent)
         self.setScene(QGraphicsScene(self))
 
@@ -191,11 +191,11 @@ class View(QGraphicsView):
 
         self._coordX = QGraphicsSimpleTextItem(self._chart)
         self._coordX.setPos(
-            self._chart.size().width()/2 - 50, self._chart.size().height())
+            self._chart.size().width() / 2 - 50, self._chart.size().height())
         self._coordX.setText("X: ")
         self._coordY = QGraphicsSimpleTextItem(self._chart)
         self._coordY.setPos(
-            self._chart.size().width()/2 + 50, self._chart.size().height())
+            self._chart.size().width() / 2 + 50, self._chart.size().height())
         self._coordY.setText("Y: ")
 
         self._callouts = []
@@ -214,16 +214,15 @@ class View(QGraphicsView):
             self.scene().setSceneRect(QRectF(QPointF(0, 0), event.size()))
             self._chart.resize(event.size())
             self._coordX.setPos(
-                self._chart.size().width()/2 - 50,
+                self._chart.size().width() / 2 - 50,
                 self._chart.size().height() - 20)
             self._coordY.setPos(
-                self._chart.size().width()/2 + 50,
+                self._chart.size().width() / 2 + 50,
                 self._chart.size().height() - 20)
             for callout in self._callouts:
                 callout.updateGeometry()
         QGraphicsView.resizeEvent(self, event)
 
-
     def mouseMoveEvent(self, event):
         pos = self._chart.mapToValue(event.position().toPoint())
         x = pos.x()
diff --git a/examples/charts/chartthemes/main.py b/examples/charts/chartthemes/main.py
index a5df1236c..58cec2d15 100644
--- a/examples/charts/chartthemes/main.py
+++ b/examples/charts/chartthemes/main.py
@@ -53,6 +53,7 @@ from ui_themewidget import Ui_ThemeWidgetForm as ui
 
 from random import random, uniform
 
+
 class ThemeWidget(QWidget):
     def __init__(self, parent):
         QWidget.__init__(self, parent)
@@ -113,7 +114,6 @@ class ThemeWidget(QWidget):
 
         self.update_ui()
 
-
     def generate_random_data(self, list_count, value_max, value_count):
         data_table = []
         for i in range(list_count):
@@ -338,7 +338,6 @@ class ThemeWidget(QWidget):
                 else:
                     set_colors(QColor(0xf0f0f0), QColor(0x404044))
 
-
         # Update antialiasing
         checked = self.ui.antialiasCheckBox.isChecked()
         for chart in self.charts:
diff --git a/examples/charts/donutbreakdown/donutbreakdown.py b/examples/charts/donutbreakdown/donutbreakdown.py
index b724857d3..27faa6e94 100644
--- a/examples/charts/donutbreakdown/donutbreakdown.py
+++ b/examples/charts/donutbreakdown/donutbreakdown.py
@@ -47,6 +47,7 @@ from PySide6.QtGui import QColor, QFont, QPainter, QScreen
 from PySide6.QtWidgets import QApplication, QMainWindow
 from PySide6.QtCharts import QChart, QChartView, QPieSeries, QPieSlice
 
+
 class MainSlice(QPieSlice):
     def __init__(self, breakdown_series, parent=None):
         super().__init__(parent)
@@ -119,7 +120,7 @@ class DonutBreakdownChart(QChart):
         for pie_slice in slices:
             breakdown_series = pie_slice.get_breakdown_series()
             breakdown_series.setPieStartAngle(angle)
-            angle += pie_slice.percentage() * 360.0 # full pie is 360.0
+            angle += pie_slice.percentage() * 360.0  # full pie is 360.0
             breakdown_series.setPieEndAngle(angle)
 
     def update_legend_markers(self):
@@ -137,6 +138,7 @@ class DonutBreakdownChart(QChart):
                     marker.setLabel(f"{label} {p:.2f}%")
                     marker.setFont(QFont("Arial", 8))
 
+
 if __name__ == "__main__":
     app = QApplication(sys.argv)
     # Graph is based on data of:
diff --git a/examples/charts/legend/legend.py b/examples/charts/legend/legend.py
index 1a75d076e..79fabdc0c 100644
--- a/examples/charts/legend/legend.py
+++ b/examples/charts/legend/legend.py
@@ -47,6 +47,7 @@ from PySide6.QtWidgets import (QApplication, QDoubleSpinBox,
     QFormLayout, QGridLayout, QGroupBox, QPushButton, QWidget)
 from PySide6.QtCharts import QBarSeries, QBarSet, QChart, QChartView
 
+
 class MainWidget(QWidget):
     def __init__(self, parent=None):
         super().__init__(parent)
@@ -225,7 +226,7 @@ class MainWidget(QWidget):
     def font_size_changed(self):
         legend = self.chart.legend()
         font = legend.font()
-        font_size  = self.font_size.value()
+        font_size = self.font_size.value()
         if font_size < 1:
             font_size = 1
         font.setPointSizeF(font_size)
@@ -242,6 +243,7 @@ class MainWidget(QWidget):
 
         legend.update()
 
+
 if __name__ == "__main__":
     app = QApplication(sys.argv)
     w = MainWidget()
diff --git a/examples/charts/logvalueaxis/logvalueaxis.py b/examples/charts/logvalueaxis/logvalueaxis.py
index 3dbad1299..e13f4f8be 100644
--- a/examples/charts/logvalueaxis/logvalueaxis.py
+++ b/examples/charts/logvalueaxis/logvalueaxis.py
@@ -41,7 +41,6 @@
 """PySide6 port of the Logarithmic Axis Example from Qt v5.x"""
 
 
-
 import sys
 from PySide6.QtCore import Qt, QPointF
 from PySide6.QtGui import QPainter
diff --git a/examples/charts/memoryusage/memoryusage.py b/examples/charts/memoryusage/memoryusage.py
index 0a098014c..7ad6e3594 100644
--- a/examples/charts/memoryusage/memoryusage.py
+++ b/examples/charts/memoryusage/memoryusage.py
@@ -55,6 +55,7 @@ def run_process(command, arguments):
     std_output = process.readAllStandardOutput().data().decode('utf-8')
     return std_output.split('\n')
 
+
 def get_memory_usage():
     result = []
     if sys.platform == 'win32':
@@ -83,7 +84,7 @@ def get_memory_usage():
             command_column = 12
         for line in run_process('ps', ps_options):
             tokens = line.split(None)
-            if len(tokens) > command_column and "PID" not in tokens: # Percentage and command
+            if len(tokens) > command_column and "PID" not in tokens:  # Percentage and command
                 command = tokens[command_column]
                 if not command.startswith('['):
                     command = os.path.basename(command)
@@ -94,6 +95,7 @@ def get_memory_usage():
     result.sort(key = lambda x: x[1], reverse=True)
     return result
 
+
 class MainWindow(QMainWindow):
 
     def __init__(self):
@@ -117,6 +119,7 @@ class MainWindow(QMainWindow):
         self._chart_view = QChartView(self.chart)
         self.setCentralWidget(self._chart_view)
 
+
 if __name__ == '__main__':
     app = QApplication(sys.argv)
     main_win = MainWindow()
diff --git a/examples/charts/modeldata/modeldata.py b/examples/charts/modeldata/modeldata.py
index 0fd38d0f5..3cfcfc329 100644
--- a/examples/charts/modeldata/modeldata.py
+++ b/examples/charts/modeldata/modeldata.py
@@ -60,7 +60,7 @@ class CustomTableModel(QAbstractTableModel):
         self.row_count = 15
 
         for i in range(self.row_count):
-            data_vec = [0]*self.column_count
+            data_vec = [0] * self.column_count
             for k in range(len(data_vec)):
                 if k % 2 == 0:
                     data_vec[k] = i * 50 + randrange(30)
@@ -116,7 +116,6 @@ class CustomTableModel(QAbstractTableModel):
         self.mapping = {}
 
 
-
 class TableWidget(QWidget):
     def __init__(self):
         super().__init__()
diff --git a/examples/charts/nesteddonuts/nesteddonuts.py b/examples/charts/nesteddonuts/nesteddonuts.py
index d8ee6160c..c42ceec14 100644
--- a/examples/charts/nesteddonuts/nesteddonuts.py
+++ b/examples/charts/nesteddonuts/nesteddonuts.py
@@ -52,6 +52,7 @@ from PySide6.QtCharts import QChart, QChartView, QPieSeries, QPieSlice
 from random import randrange
 from functools import partial
 
+
 class Widget(QWidget):
     def __init__(self):
         super().__init__()
@@ -95,18 +96,16 @@ class Widget(QWidget):
                 slc.hovered[bool].connect(partial(self.explode_slice, slc=slc))
 
                 donut.append(slc)
-                size = (self.max_size - self.min_size)/self.donut_count
+                size = (self.max_size - self.min_size) / self.donut_count
                 donut.setHoleSize(self.min_size + i * size)
                 donut.setPieSize(self.min_size + (i + 1) * size)
 
             self.donuts.append(donut)
             self.chart_view.chart().addSeries(donut)
 
-
-
     def update_rotation(self):
         for donut in self.donuts:
-            phase_shift =  randrange(-50, 100)
+            phase_shift = randrange(-50, 100)
             donut.setPieStartAngle(donut.pieStartAngle() + phase_shift)
             donut.setPieEndAngle(donut.pieEndAngle() + phase_shift)
 
@@ -130,6 +129,7 @@ class Widget(QWidget):
 
         slc.setExploded(exploded)
 
+
 if __name__ == "__main__":
     app = QApplication(sys.argv)
     w = Widget()
diff --git a/examples/charts/percentbarchart/percentbarchart.py b/examples/charts/percentbarchart/percentbarchart.py
index 6557fe81a..0883a22d1 100644
--- a/examples/charts/percentbarchart/percentbarchart.py
+++ b/examples/charts/percentbarchart/percentbarchart.py
@@ -48,6 +48,7 @@ from PySide6.QtWidgets import (QMainWindow, QApplication)
 from PySide6.QtCharts import (QBarCategoryAxis, QBarSet, QChart, QChartView,
                               QPercentBarSeries)
 
+
 class MainWindow(QMainWindow):
     def __init__(self):
         super().__init__()
diff --git a/examples/charts/temperaturerecords/temperaturerecords.py b/examples/charts/temperaturerecords/temperaturerecords.py
index d3bc872af..3bb64a27f 100644
--- a/examples/charts/temperaturerecords/temperaturerecords.py
+++ b/examples/charts/temperaturerecords/temperaturerecords.py
@@ -88,6 +88,7 @@ class MainWindow(QMainWindow):
 
         self.setCentralWidget(chart_view)
 
+
 if __name__ == "__main__":
     app = QApplication(sys.argv)
     w = MainWindow()
diff --git a/examples/corelib/threads/mandelbrot.py b/examples/corelib/threads/mandelbrot.py
index 3c6a6af21..e47a1f4eb 100644
--- a/examples/corelib/threads/mandelbrot.py
+++ b/examples/corelib/threads/mandelbrot.py
@@ -180,13 +180,13 @@ class RenderThread(QThread):
                     curpass = 4
                 else:
                     if not self.restart:
-                        elapsed = timer.elapsed();
+                        elapsed = timer.elapsed()
                         unit = 'ms'
                         if elapsed > 2000:
                             elapsed /= 1000
                             unit = 's'
                         text = f"Pass {curpass+1}/{NUM_PASSES}, max iterations: {max_iterations}, time: {elapsed}{unit}"
-                        image.setText(INFO_KEY, text);
+                        image.setText(INFO_KEY, text)
                         self.rendered_image.emit(image, scale_factor)
                     curpass += 1
 
@@ -229,7 +229,7 @@ class RenderThread(QThread):
         g = pow(g * s, 0.8)
         b = pow(b * s, 0.8)
 
-        return qRgb(r*255, g*255, b*255)
+        return qRgb(r * 255, g * 255, b * 255)
 
 
 class MandelbrotWidget(QWidget):
diff --git a/examples/datavisualization/bars3d/bars3d.py b/examples/datavisualization/bars3d/bars3d.py
index 36c43a549..0bf93940a 100644
--- a/examples/datavisualization/bars3d/bars3d.py
+++ b/examples/datavisualization/bars3d/bars3d.py
@@ -52,9 +52,11 @@ from PySide6.QtDataVisualization import (Q3DBars, QBar3DSeries, QBarDataItem,
 def data_to_bar_data_row(data):
     return list(QBarDataItem(d) for d in data)
 
+
 def data_to_bar_data_array(data):
     return list(data_to_bar_data_row(row) for row in data)
 
+
 class MainWindow(QMainWindow):
 
     def __init__(self):
@@ -108,6 +110,7 @@ class MainWindow(QMainWindow):
         self.container.setFocusPolicy(Qt.StrongFocus)
         self.setCentralWidget(self.container)
 
+
 if __name__ == '__main__':
     app = QApplication(sys.argv)
     main_win = MainWindow()
diff --git a/examples/declarative/extending/chapter1-basics/basics.py b/examples/declarative/extending/chapter1-basics/basics.py
index 9cbead9cc..db508d297 100644
--- a/examples/declarative/extending/chapter1-basics/basics.py
+++ b/examples/declarative/extending/chapter1-basics/basics.py
@@ -50,11 +50,12 @@ from PySide6.QtGui import QGuiApplication, QPen, QPainter, QColor
 from PySide6.QtQml import qmlRegisterType
 from PySide6.QtQuick import QQuickPaintedItem, QQuickView
 
+
 class PieChart (QQuickPaintedItem):
 
     nameChanged = Signal()
 
-    def __init__(self, parent = None):
+    def __init__(self, parent=None):
         QQuickPaintedItem.__init__(self, parent)
         self._name = u''
         self._color = QColor()
@@ -63,7 +64,7 @@ class PieChart (QQuickPaintedItem):
         pen = QPen(self.color, 2)
         painter.setPen(pen)
         painter.setRenderHints(QPainter.Antialiasing, True)
-        painter.drawPie(self.boundingRect().adjusted(1,1,-1,-1), 90 * 16, 290 * 16)
+        painter.drawPie(self.boundingRect().adjusted(1, 1, -1, -1), 90 * 16, 290 * 16)
 
     @Property(QColor)
     def color(self):
diff --git a/examples/declarative/extending/chapter2-methods/methods.py b/examples/declarative/extending/chapter2-methods/methods.py
index a37376ca8..c0fd0050a 100644
--- a/examples/declarative/extending/chapter2-methods/methods.py
+++ b/examples/declarative/extending/chapter2-methods/methods.py
@@ -50,12 +50,13 @@ from PySide6.QtGui import QGuiApplication, QPen, QPainter, QColor
 from PySide6.QtQml import qmlRegisterType
 from PySide6.QtQuick import QQuickPaintedItem, QQuickView
 
-class PieChart (QQuickPaintedItem):
+
+class PieChart(QQuickPaintedItem):
 
     chartCleared = Signal()
     nameChanged = Signal()
 
-    def __init__(self, parent = None):
+    def __init__(self, parent=None):
         QQuickPaintedItem.__init__(self, parent)
         self._name = u''
         self._color = QColor()
@@ -64,7 +65,7 @@ class PieChart (QQuickPaintedItem):
         pen = QPen(self.color, 2)
         painter.setPen(pen)
         painter.setRenderHints(QPainter.Antialiasing, True)
-        painter.drawPie(self.boundingRect().adjusted(1,1,-1,-1), 90 * 16, 290 * 16)
+        painter.drawPie(self.boundingRect().adjusted(1, 1, -1, -1), 90 * 16, 290 * 16)
 
     @Property(QColor)
     def color(self):
@@ -82,12 +83,13 @@ class PieChart (QQuickPaintedItem):
     def name(self, value):
         self._name = value
 
-    @Slot() # This should be something like @Invokable
+    @Slot()  # This should be something like @Invokable
     def clearChart(self):
         self.color = Qt.transparent
         self.update()
         self.chartCleared.emit()
 
+
 if __name__ == '__main__':
     app = QGuiApplication(sys.argv)
 
diff --git a/examples/declarative/extending/chapter3-bindings/bindings.py b/examples/declarative/extending/chapter3-bindings/bindings.py
index d19df7f24..3bb70dbab 100644
--- a/examples/declarative/extending/chapter3-bindings/bindings.py
+++ b/examples/declarative/extending/chapter3-bindings/bindings.py
@@ -50,13 +50,14 @@ from PySide6.QtGui import QGuiApplication, QPen, QPainter, QColor
 from PySide6.QtQml import qmlRegisterType
 from PySide6.QtQuick import QQuickPaintedItem, QQuickView
 
+
 class PieChart (QQuickPaintedItem):
 
     chartCleared = Signal()
     nameChanged = Signal()
     colorChanged = Signal()
 
-    def __init__(self, parent = None):
+    def __init__(self, parent=None):
         QQuickPaintedItem.__init__(self, parent)
         self._name = u''
         self._color = QColor()
@@ -65,7 +66,7 @@ class PieChart (QQuickPaintedItem):
         pen = QPen(self._color, 2)
         painter.setPen(pen)
         painter.setRenderHints(QPainter.Antialiasing, True)
-        painter.drawPie(self.boundingRect().adjusted(1,1,-1,-1), 90 * 16, 290 * 16)
+        painter.drawPie(self.boundingRect().adjusted(1, 1, -1, -1), 90 * 16, 290 * 16)
 
     @Property(QColor, notify=colorChanged)
     def color(self):
@@ -86,12 +87,13 @@ class PieChart (QQuickPaintedItem):
     def name(self, value):
         self._name = value
 
-    @Slot() # This should be something like @Invokable
+    @Slot()  # This should be something like @Invokable
     def clearChart(self):
         self.color = Qt.transparent
         self.update()
         self.chartCleared.emit()
 
+
 if __name__ == '__main__':
     app = QGuiApplication(sys.argv)
 
diff --git a/examples/declarative/extending/chapter4-customPropertyTypes/customPropertyTypes.py b/examples/declarative/extending/chapter4-customPropertyTypes/customPropertyTypes.py
index 1bf9387f5..0cd8feb61 100644
--- a/examples/declarative/extending/chapter4-customPropertyTypes/customPropertyTypes.py
+++ b/examples/declarative/extending/chapter4-customPropertyTypes/customPropertyTypes.py
@@ -50,9 +50,10 @@ from PySide6.QtGui import QGuiApplication, QPen, QPainter, QColor
 from PySide6.QtQml import qmlRegisterType
 from PySide6.QtQuick import QQuickPaintedItem, QQuickView, QQuickItem
 
+
 class PieSlice (QQuickPaintedItem):
 
-    def __init__(self, parent = None):
+    def __init__(self, parent=None):
         QQuickPaintedItem.__init__(self, parent)
         self._color = QColor()
 
@@ -68,10 +69,11 @@ class PieSlice (QQuickPaintedItem):
         pen = QPen(self._color, 2)
         painter.setPen(pen)
         painter.setRenderHints(QPainter.Antialiasing, True)
-        painter.drawPie(self.boundingRect().adjusted(1,1,-1,-1), 90 * 16, 290 * 16)
+        painter.drawPie(self.boundingRect().adjusted(1, 1, -1, -1), 90 * 16, 290 * 16)
+
 
 class PieChart (QQuickItem):
-    def __init__(self, parent = None):
+    def __init__(self, parent=None):
         QQuickItem.__init__(self, parent)
         self._name = None
         self._pieSlice = None
@@ -93,6 +95,7 @@ class PieChart (QQuickItem):
         self._pieSlice = value
         self._pieSlice.setParentItem(self)
 
+
 if __name__ == '__main__':
     app = QGuiApplication(sys.argv)
 
diff --git a/examples/declarative/extending/chapter5-listproperties/listproperties.py b/examples/declarative/extending/chapter5-listproperties/listproperties.py
index 646a14458..4f24a3a87 100644
--- a/examples/declarative/extending/chapter5-listproperties/listproperties.py
+++ b/examples/declarative/extending/chapter5-listproperties/listproperties.py
@@ -50,8 +50,9 @@ from PySide6.QtGui import QGuiApplication, QPen, QPainter, QColor
 from PySide6.QtQml import qmlRegisterType, ListProperty
 from PySide6.QtQuick import QQuickPaintedItem, QQuickView, QQuickItem
 
+
 class PieSlice (QQuickPaintedItem):
-    def __init__(self, parent = None):
+    def __init__(self, parent=None):
         QQuickPaintedItem.__init__(self, parent)
         self._color = QColor()
         self._fromAngle = 0
@@ -85,10 +86,11 @@ class PieSlice (QQuickPaintedItem):
         pen = QPen(self._color, 2)
         painter.setPen(pen)
         painter.setRenderHints(QPainter.Antialiasing, True)
-        painter.drawPie(self.boundingRect().adjusted(1,1,-1,-1), self._fromAngle * 16, self._angleSpan * 16)
+        painter.drawPie(self.boundingRect().adjusted(1, 1, -1, -1), self._fromAngle * 16, self._angleSpan * 16)
+
 
 class PieChart (QQuickItem):
-    def __init__(self, parent = None):
+    def __init__(self, parent=None):
         QQuickItem.__init__(self, parent)
         self._name = u''
         self._slices = []
@@ -107,6 +109,7 @@ class PieChart (QQuickItem):
 
     slices = ListProperty(PieSlice, appendSlice)
 
+
 if __name__ == '__main__':
     app = QGuiApplication(sys.argv)
 
diff --git a/examples/declarative/signals/qmltopy1/main.py b/examples/declarative/signals/qmltopy1/main.py
index 69f9e2f80..3c0ebbeaa 100644
--- a/examples/declarative/signals/qmltopy1/main.py
+++ b/examples/declarative/signals/qmltopy1/main.py
@@ -46,6 +46,7 @@ from PySide6.QtCore import QObject, QUrl, Slot
 from PySide6.QtGui import QGuiApplication
 from PySide6.QtQuick import QQuickView
 
+
 class Console(QObject):
     """Output stuff on the console."""
 
diff --git a/examples/declarative/signals/qmltopy2/main.py b/examples/declarative/signals/qmltopy2/main.py
index 4df632292..d5cb260a0 100644
--- a/examples/declarative/signals/qmltopy2/main.py
+++ b/examples/declarative/signals/qmltopy2/main.py
@@ -46,6 +46,7 @@ from PySide6.QtCore import QObject, QUrl, Slot
 from PySide6.QtGui import QGuiApplication
 from PySide6.QtQuick import QQuickView
 
+
 class RotateValue(QObject):
     def __init__(self):
         super().__init__()
@@ -58,6 +59,7 @@ class RotateValue(QObject):
         self.r = self.r + 10
         return self.r
 
+
 if __name__ == '__main__':
     app = QGuiApplication(sys.argv)
     view = QQuickView()
diff --git a/examples/declarative/signals/qmltopy3/main.py b/examples/declarative/signals/qmltopy3/main.py
index d28121c8f..e1a4672a8 100644
--- a/examples/declarative/signals/qmltopy3/main.py
+++ b/examples/declarative/signals/qmltopy3/main.py
@@ -46,9 +46,11 @@ from PySide6.QtCore import QUrl
 from PySide6.QtGui import QGuiApplication
 from PySide6.QtQuick import QQuickView
 
+
 def sayThis(s):
     print(s)
 
+
 if __name__ == '__main__':
     app = QGuiApplication(sys.argv)
     view = QQuickView()
diff --git a/examples/declarative/signals/qmltopy4/main.py b/examples/declarative/signals/qmltopy4/main.py
index 2cc6920d3..4e58350fb 100644
--- a/examples/declarative/signals/qmltopy4/main.py
+++ b/examples/declarative/signals/qmltopy4/main.py
@@ -46,9 +46,11 @@ from PySide6.QtCore import QObject, QUrl
 from PySide6.QtGui import QGuiApplication
 from PySide6.QtQuick import QQuickView
 
+
 def sayThis(s):
     print(s)
 
+
 if __name__ == '__main__':
     app = QGuiApplication(sys.argv)
     view = QQuickView()
diff --git a/examples/declarative/usingmodel/usingmodel.py b/examples/declarative/usingmodel/usingmodel.py
index 7c54cc49e..4dcb8279e 100644
--- a/examples/declarative/usingmodel/usingmodel.py
+++ b/examples/declarative/usingmodel/usingmodel.py
@@ -46,17 +46,18 @@ from PySide6.QtCore import QAbstractListModel, Qt, QUrl, QByteArray
 from PySide6.QtGui import QGuiApplication
 from PySide6.QtQuick import QQuickView
 
+
 class PersonModel (QAbstractListModel):
     MyRole = Qt.UserRole + 1
 
-    def __init__(self, parent = None):
+    def __init__(self, parent=None):
         QAbstractListModel.__init__(self, parent)
         self._data = []
 
     def roleNames(self):
         roles = {
-            PersonModel.MyRole : QByteArray(b'modelData'),
-            Qt.DisplayRole : QByteArray(b'display')
+            PersonModel.MyRole: QByteArray(b'modelData'),
+            Qt.DisplayRole: QByteArray(b'display')
         }
         return roles
 
@@ -75,8 +76,9 @@ class PersonModel (QAbstractListModel):
         return None
 
     def populate(self):
-        self._data.append({'name':'Qt', 'myrole':'role1'})
-        self._data.append({'name':'PySide', 'myrole':'role2'})
+        self._data.append({'name': 'Qt', 'myrole': 'role1'})
+        self._data.append({'name': 'PySide', 'myrole': 'role2'})
+
 
 if __name__ == '__main__':
     app = QGuiApplication(sys.argv)
diff --git a/examples/installer_test/hello.py b/examples/installer_test/hello.py
index 318512458..fc44277bf 100644
--- a/examples/installer_test/hello.py
+++ b/examples/installer_test/hello.py
@@ -89,6 +89,7 @@ class MyWidget(QWidget):
     def magic(self):
         self.text.setText(random.choice(self.hello))
 
+
 if __name__ == "__main__":
     print("Start of hello.py      ", time.ctime())
     print("  sys.version         = {}".format(sys.version.splitlines()[0]))
@@ -100,7 +101,7 @@ if __name__ == "__main__":
     widget.resize(800, 600)
     widget.show()
     if auto_quit:
-        milliseconds = 2 * 1000 # run 2 second
+        milliseconds = 2 * 1000  # run 2 second
         QTimer.singleShot(milliseconds, app.quit)
     retcode = app.exec_()
     print("End of hello.py        ", time.ctime())
diff --git a/examples/macextras/macpasteboardmime/macpasteboardmime.py b/examples/macextras/macpasteboardmime/macpasteboardmime.py
index 59220ec7a..35e5d6180 100644
--- a/examples/macextras/macpasteboardmime/macpasteboardmime.py
+++ b/examples/macextras/macpasteboardmime/macpasteboardmime.py
@@ -52,8 +52,9 @@ except ImportError:
     messageBox.exec_()
     sys.exit(1)
 
+
 class VCardMime(QtMacExtras.QMacPasteboardMime):
-    def __init__(self, t = QtMacExtras.QMacPasteboardMime.MIME_ALL):
+    def __init__(self, t=QtMacExtras.QMacPasteboardMime.MIME_ALL):
         super().__init__(t)
 
     def convertorName(self):
@@ -87,6 +88,7 @@ class VCardMime(QtMacExtras.QMacPasteboardMime):
         # Todo: implement!
         return []
 
+
 class TestWidget(QtWidgets.QWidget):
     def __init__(self, parent=None):
         super().__init__(parent)
@@ -112,11 +114,12 @@ class TestWidget(QtWidgets.QWidget):
 
     def contentsDropEvent(self, e):
         if e.mimeData().hasFormat("application/x-mycompany-VCard"):
-            s = e.mimeData().data( "application/x-mycompany-VCard" )
+            s = e.mimeData().data("application/x-mycompany-VCard")
             # s now contains text of vcard
             self.label2.setText(str(s))
             e.acceptProposedAction()
 
+
 if __name__ == '__main__':
     app = QtWidgets.QApplication(sys.argv)
     QtMacExtras.qRegisterDraggedTypes(["public.vcard"])
diff --git a/examples/multimedia/camera/camera.py b/examples/multimedia/camera/camera.py
index 0f23a37fb..12c8d2e97 100644
--- a/examples/multimedia/camera/camera.py
+++ b/examples/multimedia/camera/camera.py
@@ -50,6 +50,7 @@ from PySide6.QtWidgets import (QApplication, QHBoxLayout, QLabel,
 from PySide6.QtMultimedia import QCamera, QCameraImageCapture, QCameraInfo
 from PySide6.QtMultimediaWidgets import QCameraViewfinder
 
+
 class ImageView(QWidget):
     def __init__(self, previewImage, fileName):
         super().__init__()
@@ -83,6 +84,7 @@ class ImageView(QWidget):
     def launch(self):
         QDesktopServices.openUrl(QUrl.fromLocalFile(self.fileName))
 
+
 class MainWindow(QMainWindow):
     def __init__(self):
         super().__init__()
@@ -160,6 +162,7 @@ class MainWindow(QMainWindow):
         self.tabWidget.addTab(imageView, "Capture #{}".format(index))
         self.tabWidget.setCurrentIndex(index)
 
+
 if __name__ == '__main__':
     app = QApplication(sys.argv)
     mainWin = MainWindow()
diff --git a/examples/multimedia/player/player.py b/examples/multimedia/player/player.py
index b268178dd..ec8f73bc9 100644
--- a/examples/multimedia/player/player.py
+++ b/examples/multimedia/player/player.py
@@ -49,6 +49,7 @@ from PySide6.QtWidgets import (QApplication, QDialog, QFileDialog,
 from PySide6.QtMultimedia import QMediaPlayer, QMediaPlaylist
 from PySide6.QtMultimediaWidgets import QVideoWidget
 
+
 class MainWindow(QMainWindow):
 
     def __init__(self):
@@ -123,7 +124,7 @@ class MainWindow(QMainWindow):
         fileDialog = QFileDialog(self)
         supportedMimeTypes = QMediaPlayer.supportedMimeTypes()
         if not supportedMimeTypes:
-            supportedMimeTypes.append("video/x-msvideo") # AVI
+            supportedMimeTypes.append("video/x-msvideo")  # AVI
         fileDialog.setMimeTypeFilters(supportedMimeTypes)
         moviesLocation = QStandardPaths.writableLocation(QStandardPaths.MoviesLocation)
         fileDialog.setDirectory(moviesLocation)
@@ -148,6 +149,7 @@ class MainWindow(QMainWindow):
         self.previousAction.setEnabled(self.player.position() > 0)
         self.nextAction.setEnabled(mediaCount > 1)
 
+
 if __name__ == '__main__':
     app = QApplication(sys.argv)
     mainWin = MainWindow()
diff --git a/examples/opengl/contextinfo/contextinfo.py b/examples/opengl/contextinfo/contextinfo.py
index d115637c5..ed7b8ca72 100644
--- a/examples/opengl/contextinfo/contextinfo.py
+++ b/examples/opengl/contextinfo/contextinfo.py
@@ -106,8 +106,8 @@ fragment_shader_source = dedent("""
     }
     """)
 
-vertices = numpy.array([0, 0.707, -0.5, -0.5, 0.5, -0.5], dtype = numpy.float32)
-colors = numpy.array([1, 0, 0, 0, 1, 0, 0, 0, 1], dtype = numpy.float32)
+vertices = numpy.array([0, 0.707, -0.5, -0.5, 0.5, -0.5], dtype=numpy.float32)
+colors = numpy.array([1, 0, 0, 0, 1, 0, 0, 0, 1], dtype=numpy.float32)
 
 
 def print_surface_format(surface_format):
@@ -116,6 +116,7 @@ def print_surface_format(surface_format):
     minor = surface_format.minorVersion()
     return f"{profile_name} version {major}.{minor}"
 
+
 class RenderWindow(QWindow):
     def __init__(self, format):
         super().__init__()
@@ -170,7 +171,7 @@ class RenderWindow(QWindow):
         self.vbo.release()
 
         vao_binder = QOpenGLVertexArrayObject.Binder(self.vao)
-        if self.vao.isCreated(): # have VAO support, use it
+        if self.vao.isCreated():  # have VAO support, use it
             self.setup_vertex_attribs()
 
     def setup_vertex_attribs(self):
@@ -216,7 +217,7 @@ class RenderWindow(QWindow):
 
         if self.vao.isCreated():
             self.vao.bind()
-        else: # no VAO support, set the vertex attribute arrays now
+        else:  # no VAO support, set the vertex attribute arrays now
             self.setup_vertex_attribs()
 
         functions.glDrawArrays(GL.GL_TRIANGLES, 0, 3)
@@ -247,6 +248,7 @@ class RenderWindow(QWindow):
         self.context.doneCurrent()
         return text
 
+
 class MainWindow(QWidget):
     def __init__(self):
         super().__init__()
@@ -266,6 +268,7 @@ class MainWindow(QWidget):
         text = f"{build}\n\nPython {sys.version}\n\n{gl}"
         self._plain_text_edit.setPlainText(text)
 
+
 if __name__ == '__main__':
     parser = ArgumentParser(description="contextinfo", formatter_class=RawTextHelpFormatter)
     parser.add_argument('--gles', '-g', action='store_true',
diff --git a/examples/opengl/hellogl2/hellogl2.py b/examples/opengl/hellogl2/hellogl2.py
index bad59cba3..a4ef3314e 100644
--- a/examples/opengl/hellogl2/hellogl2.py
+++ b/examples/opengl/hellogl2/hellogl2.py
@@ -121,11 +121,12 @@ class Window(QWidget):
         else:
             super(Window, self).keyPressEvent(event)
 
+
 class Logo():
     def __init__(self):
         self.m_count = 0
         self.i = 0
-        self.m_data = numpy.empty(2500 * 6, dtype = ctypes.c_float)
+        self.m_data = numpy.empty(2500 * 6, dtype=ctypes.c_float)
 
         x1 = +0.06
         y1 = -0.14
@@ -223,6 +224,7 @@ class Logo():
         self.i += 1
         self.m_count += 6
 
+
 class GLWidget(QOpenGLWidget, QOpenGLFunctions):
     x_rotation_changed = Signal(int)
     y_rotation_changed = Signal(int)
@@ -334,7 +336,6 @@ class GLWidget(QOpenGLWidget, QOpenGLFunctions):
                    fragColor = vec4(col, 1.0);
                 }"""
 
-
     def vertex_shader_source(self):
         return """attribute vec4 vertex;
                 attribute vec3 normal;
@@ -459,6 +460,7 @@ class GLWidget(QOpenGLWidget, QOpenGLFunctions):
 
         self._last_pos = pos
 
+
 if __name__ == '__main__':
     app = QApplication(sys.argv)
     parser = ArgumentParser(description="hellogl2", formatter_class=RawTextHelpFormatter)
diff --git a/examples/remoteobjects/modelview/modelviewclient.py b/examples/remoteobjects/modelview/modelviewclient.py
index 264ba3ea4..9142c2e9e 100644
--- a/examples/remoteobjects/modelview/modelviewclient.py
+++ b/examples/remoteobjects/modelview/modelviewclient.py
@@ -53,7 +53,7 @@ if __name__ == '__main__':
     node.setHeartbeatInterval(1000)
     view = QTreeView()
     view.setWindowTitle("RemoteView")
-    view.resize(640,480)
+    view.resize(640, 480)
     model = node.acquireModel("RemoteModel")
     view.setModel(model)
     view.show()
diff --git a/examples/remoteobjects/modelview/modelviewserver.py b/examples/remoteobjects/modelview/modelviewserver.py
index 8684294ff..12eebb7cf 100644
--- a/examples/remoteobjects/modelview/modelviewserver.py
+++ b/examples/remoteobjects/modelview/modelviewserver.py
@@ -48,6 +48,7 @@ from PySide6.QtGui import (QColor, QStandardItemModel, QStandardItem)
 from PySide6.QtWidgets import (QApplication, QTreeView)
 from PySide6.QtRemoteObjects import QRemoteObjectHost, QRemoteObjectRegistryHost
 
+
 class TimerHandler(QObject):
     def __init__(self, model):
         super().__init__()
@@ -87,10 +88,11 @@ def add_child(num_children, nesting_level):
         child = QStandardItem("Child num {}, nesting Level {}".format(i + 1,
                               nesting_level))
         if i == 0:
-            child.appendRow(add_child(num_children, nesting_level -1))
+            child.appendRow(add_child(num_children, nesting_level - 1))
         result.append(child)
     return result
 
+
 if __name__ == '__main__':
     app = QApplication(sys.argv)
     model_size = 100000
@@ -112,8 +114,8 @@ if __name__ == '__main__':
 
     # Needed by QMLModelViewClient
     role_names = {
-        Qt.DisplayRole : QByteArray(b'_text'),
-        Qt.BackgroundRole : QByteArray(b'_color')
+        Qt.DisplayRole: QByteArray(b'_text'),
+        Qt.BackgroundRole: QByteArray(b'_color')
     }
     source_model.setItemRoleNames(role_names)
 
diff --git a/examples/samplebinding/main.py b/examples/samplebinding/main.py
index 144b36933..f6f9f1fa9 100644
--- a/examples/samplebinding/main.py
+++ b/examples/samplebinding/main.py
@@ -43,6 +43,7 @@
 
 from Universe import Icecream, Truck
 
+
 class VanillaChocolateIcecream(Icecream):
     def __init__(self, flavor=""):
         super().__init__(flavor)
@@ -53,6 +54,7 @@ class VanillaChocolateIcecream(Icecream):
     def getFlavor(self):
         return "vanilla sprinked with chocolate"
 
+
 class VanillaChocolateCherryIcecream(VanillaChocolateIcecream):
     def __init__(self, flavor=""):
         super().__init__(flavor)
@@ -64,6 +66,7 @@ class VanillaChocolateCherryIcecream(VanillaChocolateIcecream):
         base_flavor = super(VanillaChocolateCherryIcecream, self).getFlavor()
         return base_flavor + " and a cherry"
 
+
 if __name__ == '__main__':
     leave_on_destruction = True
     truck = Truck(leave_on_destruction)
diff --git a/examples/sql/books/bookwindow.py b/examples/sql/books/bookwindow.py
index ff99cbbbc..0b6cc5f44 100644
--- a/examples/sql/books/bookwindow.py
+++ b/examples/sql/books/bookwindow.py
@@ -55,7 +55,7 @@ class BookWindow(QMainWindow, Ui_BookWindow):
         super().__init__()
         self.setupUi(self)
 
-        #Initialize db
+        # Initialize db
         createdb.init_db()
 
         model = QSqlRelationalTableModel(self.bookTable)
diff --git a/examples/sql/books/createdb.py b/examples/sql/books/createdb.py
index 524ee0daf..d1f624ae0 100644
--- a/examples/sql/books/createdb.py
+++ b/examples/sql/books/createdb.py
@@ -41,6 +41,7 @@
 from PySide6.QtSql import QSqlDatabase, QSqlQuery
 from datetime import date
 
+
 def add_book(q, title, year, authorId, genreId, rating):
     q.addBindValue(title)
     q.addBindValue(year)
@@ -62,6 +63,7 @@ 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)
@@ -83,6 +85,7 @@ INSERT_BOOK_SQL = """
                 values(?, ?, ?, ?, ?)
     """
 
+
 def init_db():
     """
     init_db()
@@ -109,12 +112,12 @@ 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/examples/texttospeech/hello_speak/hello_speak.py b/examples/texttospeech/hello_speak/hello_speak.py
index dee43c8e8..741c7b9cb 100644
--- a/examples/texttospeech/hello_speak/hello_speak.py
+++ b/examples/texttospeech/hello_speak/hello_speak.py
@@ -48,6 +48,7 @@ from PySide6.QtWidgets import (QApplication, QComboBox, QFormLayout,
 
 from PySide6.QtTextToSpeech import QTextToSpeech
 
+
 class MainWindow(QMainWindow):
     def __init__(self):
         super().__init__()
@@ -100,6 +101,7 @@ class MainWindow(QMainWindow):
         if (state == QTextToSpeech.State.Ready):
             self.sayButton.setEnabled(True)
 
+
 if __name__ == '__main__':
     app = QApplication(sys.argv)
     mainWin = MainWindow()
diff --git a/examples/webchannel/standalone/ui_dialog.py b/examples/webchannel/standalone/ui_dialog.py
index 7fd2fde97..0cbcd96e2 100644
--- a/examples/webchannel/standalone/ui_dialog.py
+++ b/examples/webchannel/standalone/ui_dialog.py
@@ -41,7 +41,6 @@ class Ui_Dialog(object):
 
         self.gridLayout.addWidget(self.output, 0, 0, 1, 2)
 
-
         self.retranslateUi(Dialog)
 
         QMetaObject.connectSlotsByName(Dialog)
diff --git a/examples/webenginequick/nanobrowser/quicknanobrowser.py b/examples/webenginequick/nanobrowser/quicknanobrowser.py
index 1bcb045c1..77af4707d 100644
--- a/examples/webenginequick/nanobrowser/quicknanobrowser.py
+++ b/examples/webenginequick/nanobrowser/quicknanobrowser.py
@@ -46,6 +46,7 @@ from PySide6.QtQml import QQmlApplicationEngine
 from PySide6.QtWidgets import QApplication
 from PySide6.QtWebEngine import QtWebEngine
 
+
 def main():
     app = QApplication([])
     QtWebEngine.initialize()
@@ -55,5 +56,6 @@ def main():
     engine.load(qml_url)
     app.exec_()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/webenginewidgets/simplebrowser/simplebrowser.py b/examples/webenginewidgets/simplebrowser/simplebrowser.py
index 9395b5e27..5b0d7c407 100644
--- a/examples/webenginewidgets/simplebrowser/simplebrowser.py
+++ b/examples/webenginewidgets/simplebrowser/simplebrowser.py
@@ -48,6 +48,7 @@ from PySide6.QtWidgets import (QApplication, QLineEdit,
     QMainWindow, QPushButton, QToolBar)
 from PySide6.QtWebEngineWidgets import QWebEnginePage, QWebEngineView
 
+
 class MainWindow(QMainWindow):
 
     def __init__(self):
@@ -92,6 +93,7 @@ class MainWindow(QMainWindow):
     def urlChanged(self, url):
         self.addressLineEdit.setText(url.toString())
 
+
 if __name__ == '__main__':
     app = QApplication(sys.argv)
     mainWin = MainWindow()
diff --git a/examples/widgets/animation/animatedtiles/animatedtiles.py b/examples/widgets/animation/animatedtiles/animatedtiles.py
index d9198c89a..5b93730fd 100644
--- a/examples/widgets/animation/animatedtiles/animatedtiles.py
+++ b/examples/widgets/animation/animatedtiles/animatedtiles.py
@@ -205,7 +205,7 @@ if __name__ == '__main__':
         # Figure 8.
         figure_8state.assignProperty(item, 'pos',
                 QPointF(math.sin((i / 63.0) * 6.28) * 250,
-                        math.sin(((i * 2)/63.0) * 6.28) * 250))
+                        math.sin(((i * 2) / 63.0) * 6.28) * 250))
 
         # Random.
         random_state.assignProperty(item, 'pos',
diff --git a/examples/widgets/animation/easing/easing.py b/examples/widgets/animation/easing/easing.py
index 83d2e3666..6450730d0 100644
--- a/examples/widgets/animation/easing/easing.py
+++ b/examples/widgets/animation/easing/easing.py
@@ -181,7 +181,7 @@ class Window(QWidget):
             painter.setPen(QColor(0, 0, 255, 64))
             x_axis = self._iconSize.height() / 1.5
             y_axis = self._iconSize.width() / 3.0
-            painter.drawLine(0, x_axis, self._iconSize.width(),  x_axis)
+            painter.drawLine(0, x_axis, self._iconSize.width(), x_axis)
             painter.drawLine(y_axis, 0, y_axis, self._iconSize.height())
 
             curve_scale = self._iconSize.height() / 2.0
diff --git a/examples/widgets/dialogs/findfiles/findfiles.py b/examples/widgets/dialogs/findfiles/findfiles.py
index 779954edc..d5746d1a4 100644
--- a/examples/widgets/dialogs/findfiles/findfiles.py
+++ b/examples/widgets/dialogs/findfiles/findfiles.py
@@ -45,7 +45,7 @@
 import sys
 
 from PySide6.QtCore import (QCoreApplication, QDir, QFile, QFileInfo,
-                            QIODevice,  QTextStream, QUrl, Qt)
+                            QIODevice, QTextStream, QUrl, Qt)
 from PySide6.QtGui import QDesktopServices
 from PySide6.QtWidgets import (QAbstractItemView, QApplication, QComboBox,
                                QDialog, QFileDialog, QGridLayout, QHBoxLayout,
diff --git a/examples/widgets/dialogs/standarddialogs/standarddialogs.py b/examples/widgets/dialogs/standarddialogs/standarddialogs.py
index 934714237..6177238e3 100644
--- a/examples/widgets/dialogs/standarddialogs/standarddialogs.py
+++ b/examples/widgets/dialogs/standarddialogs/standarddialogs.py
@@ -70,7 +70,7 @@ class DialogOptionsWidget(QGroupBox):
 
     def add_checkbox(self, text, value):
         checkbox = QCheckBox(text)
-        self._layout.addWidget(checkbox);
+        self._layout.addWidget(checkbox)
         self._mapping[checkbox] = value
 
 
@@ -132,7 +132,7 @@ class Dialog(QDialog):
                                         QFontDialog.MonospacedFonts)
         self._font_options.add_checkbox("Show proportional fonts",
                                         QFontDialog.ProportionalFonts)
-        self._font_options.add_checkbox("No buttons", QFontDialog.NoButtons);
+        self._font_options.add_checkbox("No buttons", QFontDialog.NoButtons)
 
         self._directory_label = QLabel()
         self._directory_label.setFrameStyle(frame_style)
@@ -158,7 +158,7 @@ class Dialog(QDialog):
         self._file_options.add_checkbox("Do not resolve symlinks",
                                         QFileDialog.DontResolveSymlinks)
         self._file_options.add_checkbox("Do not confirm overwrite",
-                                        QFileDialog.DontConfirmOverwrite);
+                                        QFileDialog.DontConfirmOverwrite)
         self._file_options.add_checkbox("Readonly", QFileDialog.ReadOnly)
         self._file_options.add_checkbox("Hide name filter details",
                                         QFileDialog.HideNameFilterDetails)
@@ -230,7 +230,7 @@ class Dialog(QDialog):
         spacer = QSpacerItem(0, 0, QSizePolicy.Ignored, QSizePolicy.MinimumExpanding)
         layout.addItem(spacer, 1, 0)
         layout.addWidget(self._color_options, 2, 0, 1, 2)
-        toolbox.addItem(page, "Color Dialog");
+        toolbox.addItem(page, "Color Dialog")
 
         page = QWidget()
         layout = QGridLayout(page)
@@ -320,7 +320,7 @@ class Dialog(QDialog):
 
     def set_font(self):
         options_value = self._font_options.value()
-        options =  QFontDialog.FontDialogOptions(options_value)
+        options = QFontDialog.FontDialogOptions(options_value)
 
         description = self._font_label.text()
         default_font = QFont()
diff --git a/examples/widgets/draganddrop/draggabletext/draggabletext.py b/examples/widgets/draganddrop/draggabletext/draggabletext.py
index efe35e8ce..2c54fe97b 100644
--- a/examples/widgets/draganddrop/draggabletext/draggabletext.py
+++ b/examples/widgets/draganddrop/draggabletext/draggabletext.py
@@ -127,8 +127,8 @@ class DragWidget(QWidget):
 
             hot_spot_pos = mime.data('application/x-hotspot').split(' ')
             if len(hot_spot_pos) == 2:
-               hot_spot.setX(hot_spot_pos[0].toInt()[0])
-               hot_spot.setY(hot_spot_pos[1].toInt()[0])
+                hot_spot.setX(hot_spot_pos[0].toInt()[0])
+                hot_spot.setY(hot_spot_pos[1].toInt()[0])
 
             for piece in pieces:
                 new_label = DragLabel(piece, self)
diff --git a/examples/widgets/graphicsview/diagramscene/diagramscene.py b/examples/widgets/graphicsview/diagramscene/diagramscene.py
index 492a9d25b..92c75effc 100644
--- a/examples/widgets/graphicsview/diagramscene/diagramscene.py
+++ b/examples/widgets/graphicsview/diagramscene/diagramscene.py
@@ -131,7 +131,6 @@ class Arrow(QGraphicsLineItem):
         if line.dy() >= 0:
             angle = (math.pi * 2.0) - angle
 
-
         arrow_head1 = QPointF(math.sin(angle + math.pi / 3.0) * arrow_size,
                               math.cos(angle + math.pi / 3) * arrow_size)
         arrow_p1 = line.p1() + arrow_head1
@@ -150,7 +149,7 @@ class Arrow(QGraphicsLineItem):
             my_line = QLineF(line)
             my_line.translate(0, 4.0)
             painter.drawLine(my_line)
-            my_line.translate(0,-8.0)
+            my_line.translate(0, -8.0)
             painter.drawLine(my_line)
 
 
@@ -259,7 +258,7 @@ class DiagramItem(QGraphicsPolygonItem):
 
 
 class DiagramScene(QGraphicsScene):
-    InsertItem, InsertLine, InsertText, MoveItem  = range(4)
+    InsertItem, InsertLine, InsertText, MoveItem = range(4)
 
     item_inserted = Signal(DiagramItem)
 
diff --git a/examples/widgets/graphicsview/dragdroprobot/dragdroprobot.py b/examples/widgets/graphicsview/dragdroprobot/dragdroprobot.py
index 8fbd6c79c..77dd4d51f 100644
--- a/examples/widgets/graphicsview/dragdroprobot/dragdroprobot.py
+++ b/examples/widgets/graphicsview/dragdroprobot/dragdroprobot.py
@@ -103,7 +103,7 @@ class ColorItem(QGraphicsItem):
         if ColorItem.n > 2 and random(3) == 0:
             image = QImage(':/images/head.png')
             mime.setImageData(image)
-            drag.setPixmap(QPixmap.fromImage(image).scaled(30,40))
+            drag.setPixmap(QPixmap.fromImage(image).scaled(30, 40))
             drag.setHotSpot(QPoint(15, 30))
         else:
             mime.setColorData(self.color)
@@ -184,7 +184,7 @@ class RobotHead(RobotPart):
             painter.drawArc(-6, -2 - 20, 12, 15, 190 * 16, 160 * 16)
         else:
             painter.scale(.2272, .2824)
-            painter.drawPixmap(QPointF(-15*4.4, -50*3.54), self.pixmap)
+            painter.drawPixmap(QPointF(-15 * 4.4, -50 * 3.54), self.pixmap)
 
 
 class RobotTorso(RobotPart):
diff --git a/examples/widgets/graphicsview/elasticnodes/elasticnodes.py b/examples/widgets/graphicsview/elasticnodes/elasticnodes.py
index 549a27259..b495a8f44 100644
--- a/examples/widgets/graphicsview/elasticnodes/elasticnodes.py
+++ b/examples/widgets/graphicsview/elasticnodes/elasticnodes.py
@@ -359,7 +359,6 @@ class GraphWidget(QGraphicsView):
         else:
             QGraphicsView.keyPressEvent(self, event)
 
-
     def timerEvent(self, event):
         nodes = [item for item in self.scene().items() if isinstance(item, Node)]
 
diff --git a/examples/widgets/itemviews/addressbook/adddialogwidget.py b/examples/widgets/itemviews/addressbook/adddialogwidget.py
index bf2dd679d..302275088 100644
--- a/examples/widgets/itemviews/addressbook/adddialogwidget.py
+++ b/examples/widgets/itemviews/addressbook/adddialogwidget.py
@@ -44,6 +44,7 @@ from PySide6.QtCore import Qt
 from PySide6.QtWidgets import (QDialog, QLabel, QTextEdit, QLineEdit,
                                QDialogButtonBox, QGridLayout, QVBoxLayout)
 
+
 class AddDialogWidget(QDialog):
     """ A dialog to add a new address to the addressbook. """
 
diff --git a/examples/widgets/itemviews/addressbook/addresswidget.py b/examples/widgets/itemviews/addressbook/addresswidget.py
index d16f70f42..111e9d1cd 100644
--- a/examples/widgets/itemviews/addressbook/addresswidget.py
+++ b/examples/widgets/itemviews/addressbook/addresswidget.py
@@ -198,7 +198,7 @@ class AddressWidget(QTabWidget):
             assert re.isValid()
             re.setPatternOptions(QRegularExpression.CaseInsensitiveOption)
             proxy_model.setFilterRegularExpression(re)
-            proxy_model.setFilterKeyColumn(0) # Filter on the "name" column
+            proxy_model.setFilterKeyColumn(0)  # Filter on the "name" column
             proxy_model.sort(0, Qt.AscendingOrder)
 
             # This prevents an application crash (see: http://www.qtcentre.org/threads/58874-QListView-SelectionModel-selectionChanged-Crash)
diff --git a/examples/widgets/itemviews/addressbook/newaddresstab.py b/examples/widgets/itemviews/addressbook/newaddresstab.py
index 8a2a0ceb6..d4e981a01 100644
--- a/examples/widgets/itemviews/addressbook/newaddresstab.py
+++ b/examples/widgets/itemviews/addressbook/newaddresstab.py
@@ -45,6 +45,7 @@ from PySide6.QtWidgets import (QWidget, QLabel, QPushButton, QVBoxLayout)
 
 from adddialogwidget import AddDialogWidget
 
+
 class NewAddressTab(QWidget):
     """ An extra tab that prompts the user to add new contacts.
         To be displayed only when there are no contacts in the model.
diff --git a/examples/widgets/itemviews/addressbook/tablemodel.py b/examples/widgets/itemviews/addressbook/tablemodel.py
index ec8e3e9e4..fc1a65e1c 100644
--- a/examples/widgets/itemviews/addressbook/tablemodel.py
+++ b/examples/widgets/itemviews/addressbook/tablemodel.py
@@ -42,6 +42,7 @@
 
 from PySide6.QtCore import (Qt, QAbstractTableModel, QModelIndex)
 
+
 class TableModel(QAbstractTableModel):
 
     def __init__(self, addresses=None, parent=None):
@@ -100,7 +101,7 @@ class TableModel(QAbstractTableModel):
         self.beginInsertRows(QModelIndex(), position, position + rows - 1)
 
         for row in range(rows):
-            self.addresses.insert(position + row, {"name":"", "address":""})
+            self.addresses.insert(position + row, {"name": "", "address": ""})
 
         self.endInsertRows()
         return True
@@ -109,7 +110,7 @@ class TableModel(QAbstractTableModel):
         """ Remove a row from the model. """
         self.beginRemoveRows(QModelIndex(), position, position + rows - 1)
 
-        del self.addresses[position:position+rows]
+        del self.addresses[position:position + rows]
 
         self.endRemoveRows()
         return True
diff --git a/examples/widgets/itemviews/fetchmore/fetchmore.py b/examples/widgets/itemviews/fetchmore/fetchmore.py
index 1ee4d8635..a090a8a89 100644
--- a/examples/widgets/itemviews/fetchmore/fetchmore.py
+++ b/examples/widgets/itemviews/fetchmore/fetchmore.py
@@ -154,7 +154,7 @@ class Window(QWidget):
     @Slot(str, int, int)
     def update_log(self, path, start, number, total):
         native_path = QDir.toNativeSeparators(path)
-        last = start + number -1
+        last = start + number - 1
         entry = f'{start}..{last}/{total} items from "{native_path}" added.'
         self._log_viewer.appendPlainText(entry)
 
diff --git a/examples/widgets/itemviews/stardelegate/stardelegate.py b/examples/widgets/itemviews/stardelegate/stardelegate.py
index e4c4bae12..e8ae0e252 100644
--- a/examples/widgets/itemviews/stardelegate/stardelegate.py
+++ b/examples/widgets/itemviews/stardelegate/stardelegate.py
@@ -46,6 +46,7 @@ from PySide6.QtWidgets import QStyledItemDelegate, QStyle
 from starrating import StarRating
 from stareditor import StarEditor
 
+
 class StarDelegate(QStyledItemDelegate):
     """ A subclass of QStyledItemDelegate that allows us to render our
         pretty star ratings.
diff --git a/examples/widgets/itemviews/stardelegate/stareditor.py b/examples/widgets/itemviews/stardelegate/stareditor.py
index 226552cc0..8431f4a38 100644
--- a/examples/widgets/itemviews/stardelegate/stareditor.py
+++ b/examples/widgets/itemviews/stardelegate/stareditor.py
@@ -47,6 +47,7 @@ from PySide6.QtCore import Signal
 
 from starrating import StarRating
 
+
 class StarEditor(QWidget):
     """ The custom editor for editing StarRatings. """
 
diff --git a/examples/widgets/layouts/dynamiclayouts/dynamiclayouts.py b/examples/widgets/layouts/dynamiclayouts/dynamiclayouts.py
index fc57e011f..5c4abeb3e 100644
--- a/examples/widgets/layouts/dynamiclayouts/dynamiclayouts.py
+++ b/examples/widgets/layouts/dynamiclayouts/dynamiclayouts.py
@@ -48,6 +48,7 @@ from PySide6.QtWidgets import (QApplication, QDialog, QLayout, QGridLayout,
                                QProgressBar, QDial, QDialogButtonBox,
                                QComboBox, QLabel)
 
+
 class Dialog(QDialog):
     def __init__(self):
         super().__init__()
@@ -79,11 +80,10 @@ class Dialog(QDialog):
 
         self._rotable_widgets.append(self._rotable_widgets.pop(0))
 
-        for i in range(count//2):
+        for i in range(count // 2):
             self._rotable_layout.addWidget(self._rotable_widgets[count - i - 1], 0, i)
             self._rotable_layout.addWidget(self._rotable_widgets[i], 1, i)
 
-
     def buttons_orientation_changed(self, index):
         self._main_layout.setSizeConstraint(QLayout.SetNoConstraint)
         self.setMinimumSize(0, 0)
@@ -125,7 +125,7 @@ class Dialog(QDialog):
         count = len(self._rotable_widgets)
         for i in range(count):
             self._rotable_widgets[i].valueChanged[int].\
-                connect(self._rotable_widgets[(i+1) % count].setValue)
+                connect(self._rotable_widgets[(i + 1) % count].setValue)
 
         self._rotable_layout = QGridLayout()
         self._rotable_group_box.setLayout(self._rotable_layout)
diff --git a/examples/widgets/mainwindows/application/application.py b/examples/widgets/mainwindows/application/application.py
index d355a7cb2..dc86b5dd4 100644
--- a/examples/widgets/mainwindows/application/application.py
+++ b/examples/widgets/mainwindows/application/application.py
@@ -51,6 +51,7 @@ from PySide6.QtWidgets import (QApplication, QFileDialog, QMainWindow,
 
 import application_rc
 
+
 class MainWindow(QMainWindow):
     def __init__(self):
         super().__init__()
diff --git a/examples/widgets/mainwindows/mdi/mdi.py b/examples/widgets/mainwindows/mdi/mdi.py
index 7027d32cc..a4846442e 100644
--- a/examples/widgets/mainwindows/mdi/mdi.py
+++ b/examples/widgets/mainwindows/mdi/mdi.py
@@ -144,7 +144,7 @@ class MdiChild(QTextEdit):
     def maybe_save(self):
         if self.document().isModified():
             f = self.user_friendly_current_file()
-            message =  f"'{f}' has been modified.\nDo you want to save your changes?"
+            message = f"'{f}' has been modified.\nDo you want to save your changes?"
             ret = QMessageBox.warning(self, "MDI", message,
                     QMessageBox.Save | QMessageBox.Discard | QMessageBox.Cancel)
 
diff --git a/examples/widgets/painting/basicdrawing/basicdrawing.py b/examples/widgets/painting/basicdrawing/basicdrawing.py
index e08ce061d..998ccd9c1 100644
--- a/examples/widgets/painting/basicdrawing/basicdrawing.py
+++ b/examples/widgets/painting/basicdrawing/basicdrawing.py
@@ -168,6 +168,7 @@ class RenderArea(QWidget):
 
 id_role = Qt.UserRole
 
+
 class Window(QWidget):
     def __init__(self):
         super().__init__()
diff --git a/examples/widgets/painting/basicdrawing/basicdrawing_rc.py b/examples/widgets/painting/basicdrawing/basicdrawing_rc.py
index 19e2b3b7a..e7f9584de 100644
--- a/examples/widgets/painting/basicdrawing/basicdrawing_rc.py
+++ b/examples/widgets/painting/basicdrawing/basicdrawing_rc.py
@@ -132,4 +132,5 @@ def qInitResources():
 def qCleanupResources():
     QtCore.qUnregisterResourceData(0x03, qt_resource_struct, qt_resource_name, qt_resource_data)
 
+
 qInitResources()
diff --git a/examples/widgets/state-machine/eventtrans/eventtrans.py b/examples/widgets/state-machine/eventtrans/eventtrans.py
index 8fe67ace8..8ed1ccc9c 100644
--- a/examples/widgets/state-machine/eventtrans/eventtrans.py
+++ b/examples/widgets/state-machine/eventtrans/eventtrans.py
@@ -86,6 +86,7 @@ class MainWindow(QMainWindow):
         self.setCentralWidget(button)
         self.show()
 
+
 if __name__ == '__main__':
     import sys
 
diff --git a/examples/widgets/state-machine/factstates/factstates.py b/examples/widgets/state-machine/factstates/factstates.py
index 47cf4d841..053e89908 100644
--- a/examples/widgets/state-machine/factstates/factstates.py
+++ b/examples/widgets/state-machine/factstates/factstates.py
@@ -48,49 +48,62 @@ from PySide6.QtStateMachine import (QFinalState, QSignalTransition, QState,
 
 class Factorial(QObject):
     x_changed = Signal(int)
+
     def __init__(self):
         super().__init__()
         self.xval = -1
         self.facval = 1
+
     def get_x(self):
         return self.xval
+
     def set_x(self, x):
         if self.xval == x:
             return
         self.xval = x
         self.x_changed.emit(x)
     x = Property(int, get_x, set_x)
+
     def get_fact(self):
         return self.facval
+
     def set_fact(self, fac):
         self.facval = fac
+
     fac = Property(int, get_fact, set_fact)
 
+
 class FactorialLoopTransition(QSignalTransition):
     def __init__(self, fact):
         super().__init__(fact, SIGNAL('x_changed(int)'))
         self.fact = fact
+
     def eventTest(self, e):
         if not super(FactorialLoopTransition, self).eventTest(e):
             return False
         return e.arguments()[0] > 1
+
     def onTransition(self, e):
         x = e.arguments()[0]
         fac = self.fact.fac
         self.fact.fac = x * fac
         self.fact.x = x - 1
 
+
 class FactorialDoneTransition(QSignalTransition):
     def __init__(self, fact):
         super().__init__(fact, SIGNAL('x_changed(int)'))
         self.fact = fact
+
     def eventTest(self, e):
         if not super(FactorialDoneTransition, self).eventTest(e):
             return False
         return e.arguments()[0] <= 1
+
     def onTransition(self, e):
         print(self.fact.fac)
 
+
 if __name__ == '__main__':
     import sys
     app = QCoreApplication(sys.argv)
diff --git a/examples/widgets/state-machine/pingpong/pingpong.py b/examples/widgets/state-machine/pingpong/pingpong.py
index 12de2bb69..ec4d7cfec 100644
--- a/examples/widgets/state-machine/pingpong/pingpong.py
+++ b/examples/widgets/state-machine/pingpong/pingpong.py
@@ -47,34 +47,44 @@ from PySide6.QtStateMachine import QAbstractTransition, QState, QStateMachine
 
 class PingEvent(QEvent):
     def __init__(self):
-        super().__init__(QEvent.Type(QEvent.User+2))
+        super().__init__(QEvent.Type(QEvent.User + 2))
+
+
 class PongEvent(QEvent):
     def __init__(self):
-        super().__init__(QEvent.Type(QEvent.User+3))
+        super().__init__(QEvent.Type(QEvent.User + 3))
+
 
 class Pinger(QState):
     def __init__(self, parent):
         super().__init__(parent)
+
     def onEntry(self, e):
         self.p = PingEvent()
         self.machine().postEvent(self.p)
         print('ping?')
 
+
 class PongTransition(QAbstractTransition):
     def eventTest(self, e):
-        return e.type() == QEvent.User+3
+        return e.type() == QEvent.User + 3
+
     def onTransition(self, e):
         self.p = PingEvent()
         machine.postDelayedEvent(self.p, 500)
         print('ping?')
+
+
 class PingTransition(QAbstractTransition):
     def eventTest(self, e):
-        return e.type() == QEvent.User+2
+        return e.type() == QEvent.User + 2
+
     def onTransition(self, e):
         self.p = PongEvent()
         machine.postDelayedEvent(self.p, 500)
         print('pong!')
 
+
 if __name__ == '__main__':
     import sys
     app = QCoreApplication(sys.argv)
diff --git a/examples/widgets/state-machine/rogue/rogue.py b/examples/widgets/state-machine/rogue/rogue.py
index 67caef1f0..5bbc7dabc 100644
--- a/examples/widgets/state-machine/rogue/rogue.py
+++ b/examples/widgets/state-machine/rogue/rogue.py
@@ -51,6 +51,7 @@ class MovementTransition(QEventTransition):
     def __init__(self, window):
         super().__init__(window, QEvent.KeyPress)
         self.window = window
+
     def eventTest(self, event):
         if event.type() == QEvent.StateMachineWrapped and \
           event.event().type() == QEvent.KeyPress:
@@ -58,6 +59,7 @@ class MovementTransition(QEventTransition):
             return key == Qt.Key_2 or key == Qt.Key_8 or \
                 key == Qt.Key_6 or key == Qt.Key_4
         return False
+
     def onTransition(self, event):
         key = event.event().key()
         if key == Qt.Key_4:
@@ -69,6 +71,7 @@ class MovementTransition(QEventTransition):
         if key == Qt.Key_2:
             self.window.move_player(self.window.down)
 
+
 class Custom(QState):
     def __init__(self, parent, mw):
         super().__init__(parent)
@@ -77,6 +80,7 @@ class Custom(QState):
     def onEntry(self, e):
         print(self.mw.status)
 
+
 class MainWindow(QMainWindow):
     def __init__(self):
         super().__init__()
@@ -98,6 +102,7 @@ class MainWindow(QMainWindow):
         self.setup_map()
         self.build_machine()
         self.show()
+
     def setup_map(self):
         self.map = []
         generator = QRandomGenerator().global_()
@@ -150,6 +155,7 @@ class MainWindow(QMainWindow):
         metrics = QFontMetrics(self.font())
         return QSize(metrics.horizontalAdvance('X') * self.width,
                      metrics.height() * (self.height + 1))
+
     def paintEvent(self, event):
         metrics = QFontMetrics(self.font())
         painter = QPainter(self)
@@ -171,6 +177,7 @@ class MainWindow(QMainWindow):
                 painter.drawText(QPoint(x_pos, y_pos), self.map[x][y])
                 x_pos += font_width
         painter.drawText(QPoint(self.pX * font_width, (self.pY + 2) * font_height), '@')
+
     def move_player(self, direction):
         if direction == self.left:
             if self.map[self.pX - 1][self.pY] != '#':
@@ -185,8 +192,10 @@ class MainWindow(QMainWindow):
             if self.map[self.pX][self.pY + 1] != '#':
                 self.pY += 1
         self.repaint()
+
     def get_status(self):
         return self._status_str
+
     def set_status(self, status):
         self._status_str = status
         self.repaint()
@@ -198,6 +207,7 @@ class MainWindow(QMainWindow):
     width = 35
     height = 20
 
+
 if __name__ == '__main__':
     import sys
     app = QApplication(sys.argv)
diff --git a/examples/widgets/state-machine/trafficlight/trafficlight.py b/examples/widgets/state-machine/trafficlight/trafficlight.py
index e807d7388..3964c4eb8 100644
--- a/examples/widgets/state-machine/trafficlight/trafficlight.py
+++ b/examples/widgets/state-machine/trafficlight/trafficlight.py
@@ -51,19 +51,24 @@ class LightWidget(QWidget):
         super().__init__()
         self.color = color
         self._on_val = False
+
     def is_on(self):
         return self._on_val
+
     def set_on(self, on):
         if self._on_val == on:
             return
         self._on_val = on
         self.update()
+
     @Slot()
     def turn_off(self):
         self.set_on(False)
+
     @Slot()
     def turn_on(self):
         self.set_on(True)
+
     def paintEvent(self, e):
         if not self._on_val:
             return
@@ -74,6 +79,7 @@ class LightWidget(QWidget):
 
     on = Property(bool, is_on, set_on)
 
+
 class TrafficLightWidget(QWidget):
     def __init__(self):
         super().__init__()
@@ -89,6 +95,7 @@ class TrafficLightWidget(QWidget):
         self.setPalette(pal)
         self.setAutoFillBackground(True)
 
+
 def create_light_state(light, duration, parent=None):
     light_state = QState(parent)
     timer = QTimer(light_state)
@@ -103,6 +110,7 @@ def create_light_state(light, duration, parent=None):
     light_state.setInitialState(timing)
     return light_state
 
+
 class TrafficLight(QWidget):
     def __init__(self):
         super().__init__()
@@ -132,6 +140,7 @@ class TrafficLight(QWidget):
         machine.setInitialState(red_going_yellow)
         machine.start()
 
+
 if __name__ == '__main__':
     import sys
     app = QApplication(sys.argv)
diff --git a/examples/widgets/tetrix/tetrix.py b/examples/widgets/tetrix/tetrix.py
index 6103afd18..37b0ad36a 100644
--- a/examples/widgets/tetrix/tetrix.py
+++ b/examples/widgets/tetrix/tetrix.py
@@ -53,14 +53,14 @@ from PySide6.QtWidgets import (QApplication, QFrame, QGridLayout, QLabel,
 
 
 class Piece(IntEnum):
-     NoShape = 0
-     ZShape = 1
-     SShape = 2
-     LineShape = 3
-     TShape = 4
-     SquareShape = 5
-     LShape = 6
-     MirroredLShape = 7
+    NoShape = 0
+    ZShape = 1
+    SShape = 2
+    LineShape = 3
+    TShape = 4
+    SquareShape = 5
+    LShape = 6
+    MirroredLShape = 7
 
 
 class TetrixWindow(QWidget):
diff --git a/examples/widgets/tutorials/addressbook/part4.py b/examples/widgets/tutorials/addressbook/part4.py
index b28b1953c..013f5610d 100644
--- a/examples/widgets/tutorials/addressbook/part4.py
+++ b/examples/widgets/tutorials/addressbook/part4.py
@@ -288,7 +288,7 @@ class AddressBook(QWidget):
             self._edit_button.setEnabled(number >= 1)
             self._remove_button.setEnabled(number >= 1)
             self._next_button.setEnabled(number > 1)
-            self._previous_button.setEnabled(number >1 )
+            self._previous_button.setEnabled(number > 1)
 
             self._submit_button.hide()
             self._cancel_button.hide()
diff --git a/examples/widgets/tutorials/addressbook/part5.py b/examples/widgets/tutorials/addressbook/part5.py
index 5d8918870..d43c2fd27 100644
--- a/examples/widgets/tutorials/addressbook/part5.py
+++ b/examples/widgets/tutorials/addressbook/part5.py
@@ -312,7 +312,7 @@ class AddressBook(QWidget):
             self._remove_button.setEnabled(number >= 1)
             self._find_button.setEnabled(number > 2)
             self._next_button.setEnabled(number > 1)
-            self._previous_button.setEnabled(number >1 )
+            self._previous_button.setEnabled(number > 1)
 
             self._submit_button.hide()
             self._cancel_button.hide()
diff --git a/examples/widgets/tutorials/addressbook/part6.py b/examples/widgets/tutorials/addressbook/part6.py
index aae863ead..f96a55e17 100644
--- a/examples/widgets/tutorials/addressbook/part6.py
+++ b/examples/widgets/tutorials/addressbook/part6.py
@@ -325,7 +325,7 @@ class AddressBook(QWidget):
             self._remove_button.setEnabled(number >= 1)
             self._find_button.setEnabled(number > 2)
             self._next_button.setEnabled(number > 1)
-            self._previous_button.setEnabled(number >1 )
+            self._previous_button.setEnabled(number > 1)
 
             self._submit_button.hide()
             self._cancel_button.hide()
@@ -334,7 +334,7 @@ class AddressBook(QWidget):
             self._save_button.setEnabled(number >= 1)
 
     def save_to_file(self):
-        fileName,_ = QFileDialog.getSaveFileName(self,
+        fileName, _ = QFileDialog.getSaveFileName(self,
                 "Save Address Book", '',
                 "Address Book (*.abk);;All Files (*)")
 
@@ -352,7 +352,7 @@ class AddressBook(QWidget):
         out_file.close()
 
     def load_from_file(self):
-        fileName,_ = QFileDialog.getOpenFileName(self,
+        fileName, _ = QFileDialog.getOpenFileName(self,
                 "Open Address Book", '',
                 "Address Book (*.abk);;All Files (*)")
 
diff --git a/examples/widgets/tutorials/addressbook/part7.py b/examples/widgets/tutorials/addressbook/part7.py
index 89f5b3467..a926d62eb 100644
--- a/examples/widgets/tutorials/addressbook/part7.py
+++ b/examples/widgets/tutorials/addressbook/part7.py
@@ -332,7 +332,7 @@ class AddressBook(QWidget):
             self._remove_button.setEnabled(number >= 1)
             self._find_button.setEnabled(number > 2)
             self._next_button.setEnabled(number > 1)
-            self._previous_button.setEnabled(number >1 )
+            self._previous_button.setEnabled(number > 1)
 
             self._submit_button.hide()
             self._cancel_button.hide()
@@ -343,7 +343,7 @@ class AddressBook(QWidget):
             self._save_button.setEnabled(number >= 1)
 
     def save_to_file(self):
-        fileName,_ = QFileDialog.getSaveFileName(self,
+        fileName, _ = QFileDialog.getSaveFileName(self,
                 "Save Address Book", '',
                 "Address Book (*.abk);;All Files (*)")
 
@@ -361,7 +361,7 @@ class AddressBook(QWidget):
         out_file.close()
 
     def load_from_file(self):
-        fileName,_ = QFileDialog.getOpenFileName(self,
+        fileName, _ = QFileDialog.getOpenFileName(self,
                 "Open Address Book", '',
                 "Address Book (*.abk);;All Files (*)")
 
diff --git a/examples/xml/dombookmarks/dombookmarks.py b/examples/xml/dombookmarks/dombookmarks.py
index c1827c0c6..af9c00959 100644
--- a/examples/xml/dombookmarks/dombookmarks.py
+++ b/examples/xml/dombookmarks/dombookmarks.py
@@ -102,7 +102,7 @@ class MainWindow(QMainWindow):
             self.statusBar().showMessage("File saved", 2000)
 
     def about(self):
-       QMessageBox.about(self, "About DOM Bookmarks",
+        QMessageBox.about(self, "About DOM Bookmarks",
             "The <b>DOM Bookmarks</b> example demonstrates how to use Qt's "
             "DOM classes to read and write XML documents.")