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>

2 files changed, 27 insertions, 26 deletions

diff --git a/examples/corelib/settingseditor/settingseditor.py b/examples/corelib/settingseditor/settingseditor.py
index ca4369149..0a3f7748b 100644
--- a/examples/corelib/settingseditor/settingseditor.py
+++ b/examples/corelib/settingseditor/settingseditor.py
@@ -166,7 +166,7 @@ class MainWindow(QMainWindow):
     @Slot()
     def open_inifile(self):
         file_name, _ = QFileDialog.getOpenFileName(self, "Open INI File",
-                '', "INI Files (*.ini *.conf)")
+                                                   '', "INI Files (*.ini *.conf)")
 
         if file_name:
             self.load_ini_file(file_name)
@@ -181,7 +181,8 @@ class MainWindow(QMainWindow):
     @Slot()
     def open_property_list(self):
         file_name, _ = QFileDialog.getOpenFileName(self,
-                "Open Property List", '', "Property List Files (*.plist)")
+                                                   "Open Property List", '',
+                                                   "Property List Files (*.plist)")
 
         if file_name:
             settings = QSettings(file_name, QSettings.NativeFormat)
@@ -191,8 +192,8 @@ class MainWindow(QMainWindow):
     @Slot()
     def open_registry_path(self):
         path, ok = QInputDialog.getText(self, "Open Registry Path",
-                "Enter the path in the Windows registry:",
-                QLineEdit.Normal, 'HKEY_CURRENT_USER\\')
+                                        "Enter the path in the Windows registry:",
+                                        QLineEdit.Normal, 'HKEY_CURRENT_USER\\')
 
         if ok and path != '':
             settings = QSettings(path, QSettings.NativeFormat)
@@ -202,8 +203,8 @@ class MainWindow(QMainWindow):
     @Slot()
     def about(self):
         QMessageBox.about(self, "About Settings Editor",
-                "The <b>Settings Editor</b> example shows how to access "
-                "application settings using Qt.")
+                          "The <b>Settings Editor</b> example shows how to access "
+                          "application settings using Qt.")
 
     def create_actions(self):
         self._open_settings_act = QAction("&Open Application Settings...",
@@ -217,35 +218,35 @@ class MainWindow(QMainWindow):
 
     def create_actions(self):
         self.open_settings_action = QAction("&Open Application Settings...",
-                self, shortcut="Ctrl+O", triggered=self.open_settings)
+                                            self, shortcut="Ctrl+O", triggered=self.open_settings)
 
         self.open_ini_file_action = QAction("Open I&NI File...", self,
-                shortcut="Ctrl+N", triggered=self.open_inifile)
+                                            shortcut="Ctrl+N", triggered=self.open_inifile)
 
-        self.open_property_list_action = QAction("Open macOS &Property List...",
-                self, shortcut="Ctrl+P", triggered=self.open_property_list)
+        self.open_property_list_action = QAction("Open macOS &Property List...", self,
+                                                 shortcut="Ctrl+P",
+                                                 triggered=self.open_property_list)
         if sys.platform != 'darwin':
             self.open_property_list_action.setEnabled(False)
 
         self.open_registry_path_action = QAction(
-                "Open Windows &Registry Path...", self, shortcut="Ctrl+G",
-                triggered=self.open_registry_path)
+            "Open Windows &Registry Path...", self, shortcut="Ctrl+G",
+            triggered=self.open_registry_path)
         if sys.platform != 'win32':
             self.open_registry_path_action.setEnabled(False)
 
         self.refresh_action = QAction("&Refresh", self, shortcut="Ctrl+R",
-                enabled=False, triggered=self.settings_tree.refresh)
+                                      enabled=False, triggered=self.settings_tree.refresh)
 
-        self.exit_action = QAction("E&xit", self, shortcut="Ctrl+Q",
-                triggered=self.close)
+        self.exit_action = QAction("E&xit", self, shortcut="Ctrl+Q", triggered=self.close)
 
         self.auto_refresh_action = QAction("&Auto-Refresh", self,
-                shortcut="Ctrl+A", checkable=True, enabled=False)
+                                           shortcut="Ctrl+A", checkable=True, enabled=False)
         self.auto_refresh_action.triggered[bool].connect(self.settings_tree.set_auto_refresh)
         self.auto_refresh_action.triggered[bool].connect(self.refresh_action.setDisabled)
 
         self.fallbacks_action = QAction("&Fallbacks", self,
-                shortcut="Ctrl+F", checkable=True, enabled=False)
+                                        shortcut="Ctrl+F", checkable=True, enabled=False)
         self.fallbacks_action.triggered[bool].connect(self.settings_tree.set_fallbacks_enabled)
 
         self.about_action = QAction("&About", self, triggered=self.about)
diff --git a/examples/corelib/threads/mandelbrot.py b/examples/corelib/threads/mandelbrot.py
index f9cc4559b..4689813d4 100644
--- a/examples/corelib/threads/mandelbrot.py
+++ b/examples/corelib/threads/mandelbrot.py
@@ -53,7 +53,8 @@ class RenderThread(QThread):
         self.abort = False
 
         for i in range(RenderThread.colormap_size):
-            self.colormap.append(self.rgb_from_wave_length(380.0 + (i * 400.0 / RenderThread.colormap_size)))
+            self.colormap.append(
+                self.rgb_from_wave_length(380.0 + (i * 400.0 / RenderThread.colormap_size)))
 
     def stop(self):
         self.mutex.lock()
@@ -132,7 +133,8 @@ class RenderThread(QThread):
 
                         if num_iterations < max_iterations:
                             image.setPixel(x + half_width, y + half_height,
-                                           self.colormap[num_iterations % RenderThread.colormap_size])
+                                           self.colormap[
+                                               num_iterations % RenderThread.colormap_size])
                             all_black = False
                         else:
                             image.setPixel(x + half_width, y + half_height, qRgb(0, 0, 0))
@@ -221,7 +223,7 @@ class MandelbrotWidget(QWidget):
             if self.pixmap.isNull():
                 painter.setPen(Qt.white)
                 painter.drawText(self.rect(), Qt.AlignCenter,
-                        "Rendering initial image, please wait...")
+                                 "Rendering initial image, please wait...")
                 return
 
             if self._cur_scale == self._pixmap_scale:
@@ -250,10 +252,10 @@ class MandelbrotWidget(QWidget):
             painter.setPen(Qt.NoPen)
             painter.setBrush(QColor(0, 0, 0, 127))
             painter.drawRect((self.width() - text_width) / 2 - 5, 0, text_width + 10,
-                    metrics.lineSpacing() + 5)
+                             metrics.lineSpacing() + 5)
             painter.setPen(Qt.white)
             painter.drawText((self.width() - text_width) / 2,
-                    metrics.leading() + metrics.ascent(), text)
+                             metrics.leading() + metrics.ascent(), text)
 
     def resizeEvent(self, event):
         self.thread.render(self._center_x, self._center_y, self._cur_scale, self.size())
@@ -317,15 +319,13 @@ class MandelbrotWidget(QWidget):
     def zoom(self, zoomFactor):
         self._cur_scale *= zoomFactor
         self.update()
-        self.thread.render(self._center_x, self._center_y, self._cur_scale,
-                self.size())
+        self.thread.render(self._center_x, self._center_y, self._cur_scale, self.size())
 
     def scroll(self, deltaX, deltaY):
         self._center_x += deltaX * self._cur_scale
         self._center_y += deltaY * self._cur_scale
         self.update()
-        self.thread.render(self._center_x, self._center_y, self._cur_scale,
-                self.size())
+        self.thread.render(self._center_x, self._center_y, self._cur_scale, self.size())
 
 
 if __name__ == '__main__':