Examples: Fix a number of flake8 errors (part 1)

First batch, including low-hanging fruit like Alignments, whitespaces,
line length, indents, etc.

Pick-to: 6.6
Change-Id: I55966876077f7fddfdc82cbe376677af9995f329
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

6 files changed, 41 insertions, 39 deletions

diff --git a/examples/charts/callout/callout.py b/examples/charts/callout/callout.py
index 3de00b8df..59a1c3fad 100644
--- a/examples/charts/callout/callout.py
+++ b/examples/charts/callout/callout.py
@@ -4,8 +4,8 @@
 """PySide6 port of the Callout example from Qt v5.x"""
 
 import sys
-from PySide6.QtWidgets import (QApplication, QGraphicsScene,
-    QGraphicsView, QGraphicsSimpleTextItem, QGraphicsItem)
+from PySide6.QtWidgets import (QApplication, QGraphicsScene, QGraphicsView,
+                               QGraphicsSimpleTextItem, QGraphicsItem)
 from PySide6.QtCore import Qt, QPointF, QRectF, QRect
 from PySide6.QtCharts import QChart, QLineSeries, QSplineSeries
 from PySide6.QtGui import QPainter, QFont, QFontMetrics, QPainterPath, QColor
@@ -42,37 +42,37 @@ class Callout(QGraphicsItem):
 
             # establish the position of the anchor point in relation to _rect
             above = anchor.y() <= self._rect.top()
-            above_center = (anchor.y() > self._rect.top() and
-                anchor.y() <= self._rect.center().y())
-            below_center = (anchor.y() > self._rect.center().y() and
-                anchor.y() <= self._rect.bottom())
+            above_center = (anchor.y() > self._rect.top()
+                            and anchor.y() <= self._rect.center().y())
+            below_center = (anchor.y() > self._rect.center().y()
+                            and anchor.y() <= self._rect.bottom())
             below = anchor.y() > self._rect.bottom()
 
             on_left = anchor.x() <= self._rect.left()
-            left_of_center = (anchor.x() > self._rect.left() and
-                anchor.x() <= self._rect.center().x())
-            right_of_center = (anchor.x() > self._rect.center().x() and
-                anchor.x() <= self._rect.right())
+            left_of_center = (anchor.x() > self._rect.left()
+                              and anchor.x() <= self._rect.center().x())
+            right_of_center = (anchor.x() > self._rect.center().x()
+                               and anchor.x() <= self._rect.right())
             on_right = anchor.x() > self._rect.right()
 
             # get the nearest _rect corner.
             x = (on_right + right_of_center) * self._rect.width()
             y = (below + below_center) * self._rect.height()
-            corner_case = ((above and on_left) or (above and on_right) or
-                (below and on_left) or (below and on_right))
+            corner_case = ((above and on_left) or (above and on_right)
+                           or (below and on_left) or (below and on_right))
             vertical = abs(anchor.x() - x) > abs(anchor.y() - y)
 
-            x1 = (x + left_of_center * 10 - right_of_center * 20 + corner_case *
-                int(not vertical) * (on_left * 10 - on_right * 20))
-            y1 = (y + above_center * 10 - below_center * 20 + corner_case *
-                vertical * (above * 10 - below * 20))
+            x1 = (x + left_of_center * 10 - right_of_center * 20 + corner_case
+                  * int(not vertical) * (on_left * 10 - on_right * 20))
+            y1 = (y + above_center * 10 - below_center * 20 + corner_case
+                  * vertical * (above * 10 - below * 20))
             point1.setX(x1)
             point1.setY(y1)
 
-            x2 = (x + left_of_center * 20 - right_of_center * 10 + corner_case *
-                int(not vertical) * (on_left * 20 - on_right * 10))
-            y2 = (y + above_center * 20 - below_center * 10 + corner_case *
-                vertical * (above * 20 - below * 10))
+            x2 = (x + left_of_center * 20 - right_of_center * 10 + corner_case
+                  * int(not vertical) * (on_left * 20 - on_right * 10))
+            y2 = (y + above_center * 20 - below_center * 10 + corner_case
+                  * vertical * (above * 20 - below * 10))
             point2.setX(x2)
             point2.setY(y2)
 
@@ -127,7 +127,7 @@ class View(QGraphicsView):
         self._chart = QChart()
         self._chart.setMinimumSize(640, 480)
         self._chart.setTitle("Hover the line to show callout. Click the line "
-            "to make it stay")
+                             "to make it stay")
         self._chart.legend().hide()
         self.series = QLineSeries()
         self.series.append(1, 3)
diff --git a/examples/charts/chartthemes/main.py b/examples/charts/chartthemes/main.py
index 3a058804d..3ea7b629d 100644
--- a/examples/charts/chartthemes/main.py
+++ b/examples/charts/chartthemes/main.py
@@ -27,7 +27,7 @@ class ThemeWidget(QWidget):
         self.value_max = 10
         self.value_count = 7
         self.data_table = self.generate_random_data(self.list_count,
-            self.value_max, self.value_count)
+                                                    self.value_max, self.value_count)
 
         self.ui.setupUi(self)
         self.populate_themebox()
@@ -41,8 +41,7 @@ class ThemeWidget(QWidget):
 
         # Pie Chart
         chart_view = QChartView(self.create_pie_chart())
-        chart_view.setSizePolicy(QSizePolicy.Ignored,
-            QSizePolicy.Ignored)
+        chart_view.setSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored)
         self.ui.gridLayout.addWidget(chart_view, 1, 1)
         self.charts.append(chart_view)
 
diff --git a/examples/charts/legend/legend.py b/examples/charts/legend/legend.py
index 39b9543f4..5417a940f 100644
--- a/examples/charts/legend/legend.py
+++ b/examples/charts/legend/legend.py
@@ -207,10 +207,8 @@ class MainWidget(QWidget):
     def update_legend_layout(self):
         legend = self.chart.legend()
 
-        rect = QRectF(self.legend_posx.value(),
-            self.legend_posy.value(),
-            self.legend_width.value(),
-            self.legend_height.value())
+        rect = QRectF(self.legend_posx.value(), self.legend_posy.value(),
+                      self.legend_width.value(), self.legend_height.value())
         legend.setGeometry(rect)
 
         legend.update()
diff --git a/examples/charts/percentbarchart/percentbarchart.py b/examples/charts/percentbarchart/percentbarchart.py
index cfb11800a..9f70c0328 100644
--- a/examples/charts/percentbarchart/percentbarchart.py
+++ b/examples/charts/percentbarchart/percentbarchart.py
@@ -21,11 +21,11 @@ class MainWindow(QMainWindow):
         set3 = QBarSet("Mary")
         set4 = QBarSet("Samantha")
 
-        set0.append([1, 2, 3,  4, 5, 6])
-        set1.append([5, 0, 0,  4, 0, 7])
+        set0.append([1, 2, 3, 4, 5, 6])
+        set1.append([5, 0, 0, 4, 0, 7])
         set2.append([3, 5, 8, 13, 8, 5])
-        set3.append([5, 6, 7,  3, 4, 5])
-        set4.append([9, 7, 5,  3, 1, 2])
+        set3.append([5, 6, 7, 3, 4, 5])
+        set4.append([9, 7, 5, 3, 1, 2])
 
         series = QPercentBarSeries()
         series.append(set0)
diff --git a/examples/charts/pointconfiguration/chartwindow.py b/examples/charts/pointconfiguration/chartwindow.py
index 055802b9f..36b10aa16 100644
--- a/examples/charts/pointconfiguration/chartwindow.py
+++ b/examples/charts/pointconfiguration/chartwindow.py
@@ -109,14 +109,14 @@ class ChartWindow(QMainWindow):
         self._selectedPointConfig = self._series.pointConfiguration(index)
         selected_point = self._series.at(index)
         selected_index_lineedit = self._selected_point_index_lineedit
-        selected_index_lineedit.setText("(" + str(selected_point.x()) + ", " +
-                                        str(selected_point.y()) + ")")
+        selected_index_lineedit.setText("(" + str(selected_point.x()) + ", "
+                                        + str(selected_point.y()) + ")")
         config = self._series.pointConfiguration(index)
 
         color = config.get(PointConfig.Color) or self._series.color()
         size = config.get(PointConfig.Size) or self._series.markerSize()
-        labelVisibility = (config.get(PointConfig.LabelVisibility) or
-                           self._series.pointLabelsVisible())
+        labelVisibility = (config.get(PointConfig.LabelVisibility)
+                           or self._series.pointLabelsVisible())
         customLabel = config.get(PointConfig.LabelFormat) or ""
 
         combobox_value_list = [
diff --git a/examples/charts/pointselectionandmarkers/pointselectionandmarkers.py b/examples/charts/pointselectionandmarkers/pointselectionandmarkers.py
index 20a65bdaf..df7b61687 100644
--- a/examples/charts/pointselectionandmarkers/pointselectionandmarkers.py
+++ b/examples/charts/pointselectionandmarkers/pointselectionandmarkers.py
@@ -7,7 +7,8 @@ import sys
 from PySide6.QtCore import Slot, QPointF, Qt
 from PySide6.QtCharts import QChart, QChartView, QSplineSeries
 from PySide6.QtGui import QPainter, QImage
-from PySide6.QtWidgets import QApplication, QMainWindow, QWidget, QGridLayout, QComboBox, QCheckBox, QLabel, QHBoxLayout
+from PySide6.QtWidgets import (QApplication, QMainWindow, QWidget, QGridLayout,
+                               QComboBox, QCheckBox, QLabel, QHBoxLayout)
 
 import utilities as Utilities
 
@@ -68,7 +69,9 @@ if __name__ == "__main__":
 
     @Slot(int)
     def set_selected_light_marker(index):
-        series.setSelectedLightMarker(Utilities.get_selected_point_representation(Utilities.selected_point_type(index), marker_size))
+        series.setSelectedLightMarker(
+            Utilities.get_selected_point_representation(
+                Utilities.selected_point_type(index), marker_size))
 
     char_point_selected = QLabel("Char point selected: ")
     char_point_selected_combobox.addItems(["Blue triangle", "Yellow rectangle", "Lavender circle"])
@@ -85,7 +88,9 @@ if __name__ == "__main__":
     @Slot(int)
     def display_unselected_points(checkbox_state):
         if checkbox_state:
-            series.setLightMarker(Utilities.get_point_representation(Utilities.point_type(char_point_combobox.currentIndex()), marker_size))
+            series.setLightMarker(
+                Utilities.get_point_representation(
+                    Utilities.point_type(char_point_combobox.currentIndex()), marker_size))
         else:
             series.setLightMarker(QImage())