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>

1 files changed, 12 insertions, 13 deletions

diff --git a/examples/widgets/tutorials/addressbook/part5.py b/examples/widgets/tutorials/addressbook/part5.py
index 72245703f..921c210d4 100644
--- a/examples/widgets/tutorials/addressbook/part5.py
+++ b/examples/widgets/tutorials/addressbook/part5.py
@@ -134,34 +134,34 @@ class AddressBook(QWidget):
         address = self._address_text.toPlainText()
 
         if name == "" or address == "":
-            QMessageBox.information(self, "Empty Field",
-                    "Please enter a name and address.")
+            QMessageBox.information(self, "Empty Field", "Please enter a name and address.")
             return
 
         if self._current_mode == self.AddingMode:
             if name not in self.contacts:
                 self.contacts[name] = address
                 QMessageBox.information(self, "Add Successful",
-                        f'"{name}" has been added to your address book.')
+                                        f'"{name}" has been added to your address book.')
             else:
                 QMessageBox.information(self, "Add Unsuccessful",
-                        f'Sorry, "{name}" is already in your address book.')
+                                        f'Sorry, "{name}" is already in your address book.')
                 return
 
         elif self._current_mode == self.EditingMode:
             if self._old_name != name:
                 if name not in self.contacts:
                     QMessageBox.information(self, "Edit Successful",
-                            f'"{self.oldName}" has been edited in your address book.')
+                                            f'"{self.oldName}" has been edited in your '
+                                            'address book.')
                     del self.contacts[self._old_name]
                     self.contacts[name] = address
                 else:
                     QMessageBox.information(self, "Edit Unsuccessful",
-                            f'Sorry, "{name}" is already in your address book.')
+                                            f'Sorry, "{name}" is already in your address book.')
                     return
             elif self._old_address != address:
                 QMessageBox.information(self, "Edit Successful",
-                        f'"{name}" has been edited in your address book.')
+                                        f'"{name}" has been edited in your address book.')
                 self.contacts[name] = address
 
         self.update_interface(self.NavigationMode)
@@ -179,15 +179,15 @@ class AddressBook(QWidget):
 
         if name in self.contacts:
             button = QMessageBox.question(self, "Confirm Remove",
-                    f'Are you sure you want to remove "{name}"?',
-                    QMessageBox.Yes | QMessageBox.No)
+                                          f'Are you sure you want to remove "{name}"?',
+                                          QMessageBox.Yes | QMessageBox.No)
 
             if button == QMessageBox.Yes:
                 self.previous()
                 del self.contacts[name]
 
                 QMessageBox.information(self, "Remove Successful",
-                        f'"{name}" has been removed from your address book.')
+                                        f'"{name}" has been removed from your address book.')
 
         self.update_interface(self.NavigationMode)
 
@@ -243,7 +243,7 @@ class AddressBook(QWidget):
                 self._address_text.setText(self.contacts[contact_name])
             else:
                 QMessageBox.information(self, "Contact Not Found",
-                        f'Sorry, "{contact_name}" is not in your address book.')
+                                        f'Sorry, "{contact_name}" is not in your address book.')
                 return
 
         self.update_interface(self.NavigationMode)
@@ -311,8 +311,7 @@ class FindDialog(QDialog):
         text = self._line_edit.text()
 
         if not text:
-            QMessageBox.information(self, "Empty Field",
-                    "Please enter a name.")
+            QMessageBox.information(self, "Empty Field", "Please enter a name.")
             return
         else:
             self._find_text = text