examples: fix flake8 issues and add exceptions

Exception for:
- qApp and tr not being directly imported: F821
- *rc and qml modules being imported but not used: F401

Pick-to: 6.6 6.5 6.2
Change-Id: I5e40f3f54c1721ef3dc5d7f1e87d5fd8ec771b8e
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 5 insertions, 3 deletions

diff --git a/examples/widgets/painting/painter/painter.py b/examples/widgets/painting/painter/painter.py
index 58584baff..2ca078ad9 100644
--- a/examples/widgets/painting/painter/painter.py
+++ b/examples/widgets/painting/painter/painter.py
@@ -116,15 +116,17 @@ class MainWindow(QMainWindow):
         self.bar = self.addToolBar("Menu")
         self.bar.setToolButtonStyle(Qt.ToolButtonTextBesideIcon)
         self._save_action = self.bar.addAction(
-            qApp.style().standardIcon(QStyle.SP_DialogSaveButton), "Save", self.on_save
+            qApp.style().standardIcon(QStyle.SP_DialogSaveButton),  # noqa: F821
+            "Save", self.on_save
         )
         self._save_action.setShortcut(QKeySequence.Save)
         self._open_action = self.bar.addAction(
-            qApp.style().standardIcon(QStyle.SP_DialogOpenButton), "Open", self.on_open
+            qApp.style().standardIcon(QStyle.SP_DialogOpenButton),  # noqa: F821
+            "Open", self.on_open
         )
         self._open_action.setShortcut(QKeySequence.Open)
         self.bar.addAction(
-            qApp.style().standardIcon(QStyle.SP_DialogResetButton),
+            qApp.style().standardIcon(QStyle.SP_DialogResetButton),  # noqa: F821
             "Clear",
             self.painter_widget.clear,
         )