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>

4 files changed, 32 insertions, 33 deletions

diff --git a/examples/network/blockingfortuneclient/blockingfortuneclient.py b/examples/network/blockingfortuneclient/blockingfortuneclient.py
index 816ef67f5..d0dd7e0ad 100644
--- a/examples/network/blockingfortuneclient/blockingfortuneclient.py
+++ b/examples/network/blockingfortuneclient/blockingfortuneclient.py
@@ -110,7 +110,7 @@ class BlockingClient(QWidget):
         port_label.setBuddy(self._port_line_edit)
 
         self._status_label = QLabel(
-                "This example requires that you run the Fortune Server example as well.")
+            "This example requires that you run the Fortune Server example as well.")
         self._status_label.setWordWrap(True)
 
         self._get_fortune_button = QPushButton("Get Fortune")
@@ -145,7 +145,7 @@ class BlockingClient(QWidget):
     def request_new_fortune(self):
         self._get_fortune_button.setEnabled(False)
         self.thread.request_new_fortune(self._host_line_edit.text(),
-                int(self._port_line_edit.text()))
+                                        int(self._port_line_edit.text()))
 
     def show_fortune(self, nextFortune):
         if nextFortune == self._current_fortune:
@@ -159,22 +159,22 @@ class BlockingClient(QWidget):
     def display_error(self, socketError, message):
         if socketError == QAbstractSocket.HostNotFoundError:
             QMessageBox.information(self, "Blocking Fortune Client",
-                    "The host was not found. Please check the host and port "
-                    "settings.")
+                                    "The host was not found. Please check the host and port "
+                                    "settings.")
         elif socketError == QAbstractSocket.ConnectionRefusedError:
             QMessageBox.information(self, "Blocking Fortune Client",
-                    "The connection was refused by the peer. Make sure the "
-                    "fortune server is running, and check that the host name "
-                    "and port settings are correct.")
+                                    "The connection was refused by the peer. Make sure the "
+                                    "fortune server is running, and check that the host name "
+                                    "and port settings are correct.")
         else:
             QMessageBox.information(self, "Blocking Fortune Client",
-                    f"The following error occurred: {message}.")
+                                    f"The following error occurred: {message}.")
 
         self._get_fortune_button.setEnabled(True)
 
     def enable_get_fortune_button(self):
-        self._get_fortune_button.setEnabled(self._host_line_edit.text() != '' and
-                self._port_line_edit.text() != '')
+        self._get_fortune_button.setEnabled(self._host_line_edit.text() != ''
+                                            and self._port_line_edit.text() != '')
 
 
 if __name__ == '__main__':
diff --git a/examples/network/fortuneclient/fortuneclient.py b/examples/network/fortuneclient/fortuneclient.py
index b695c2ea8..e88e5e35b 100644
--- a/examples/network/fortuneclient/fortuneclient.py
+++ b/examples/network/fortuneclient/fortuneclient.py
@@ -31,7 +31,7 @@ class Client(QDialog):
         port_label.setBuddy(self._port_line_edit)
 
         self._status_label = QLabel("This examples requires that you run "
-                "the Fortune Server example as well.")
+                                    "the Fortune Server example as well.")
 
         self._get_fortune_button = QPushButton("Get Fortune")
         self._get_fortune_button.setDefault(True)
@@ -40,8 +40,7 @@ class Client(QDialog):
         quit_button = QPushButton("Quit")
 
         button_box = QDialogButtonBox()
-        button_box.addButton(self._get_fortune_button,
-                QDialogButtonBox.ActionRole)
+        button_box.addButton(self._get_fortune_button, QDialogButtonBox.ActionRole)
         button_box.addButton(quit_button, QDialogButtonBox.RejectRole)
 
         self._tcp_socket = QTcpSocket(self)
@@ -69,7 +68,7 @@ class Client(QDialog):
         self._block_size = 0
         self._tcp_socket.abort()
         self._tcp_socket.connectToHost(self._host_line_edit.text(),
-                int(self._port_line_edit.text()))
+                                       int(self._port_line_edit.text()))
 
     def read_fortune(self):
         instr = QDataStream(self._tcp_socket)
@@ -99,23 +98,23 @@ class Client(QDialog):
             pass
         elif socketError == QAbstractSocket.HostNotFoundError:
             QMessageBox.information(self, "Fortune Client",
-                    "The host was not found. Please check the host name and "
-                    "port settings.")
+                                    "The host was not found. Please check the host name and "
+                                    "port settings.")
         elif socketError == QAbstractSocket.ConnectionRefusedError:
             QMessageBox.information(self, "Fortune Client",
-                    "The connection was refused by the peer. Make sure the "
-                    "fortune server is running, and check that the host name "
-                    "and port settings are correct.")
+                                    "The connection was refused by the peer. Make sure the "
+                                    "fortune server is running, and check that the host name "
+                                    "and port settings are correct.")
         else:
             reason = self._tcp_socket.errorString()
             QMessageBox.information(self, "Fortune Client",
-                    f"The following error occurred: {reason}.")
+                                    f"The following error occurred: {reason}.")
 
         self._get_fortune_button.setEnabled(True)
 
     def enable_get_fortune_button(self):
-        self._get_fortune_button.setEnabled(bool(self._host_line_edit.text() and
-                self._port_line_edit.text()))
+        self._get_fortune_button.setEnabled(bool(self._host_line_edit.text()
+                                                 and self._port_line_edit.text()))
 
 
 if __name__ == '__main__':
diff --git a/examples/network/fortuneserver/fortuneserver.py b/examples/network/fortuneserver/fortuneserver.py
index d84c9dcfd..a94a49f42 100644
--- a/examples/network/fortuneserver/fortuneserver.py
+++ b/examples/network/fortuneserver/fortuneserver.py
@@ -27,21 +27,21 @@ class Server(QDialog):
         if not self._tcp_server.listen():
             reason = self._tcp_server.errorString()
             QMessageBox.critical(self, "Fortune Server",
-                    f"Unable to start the server: {reason}.")
+                                 f"Unable to start the server: {reason}.")
             self.close()
             return
         port = self._tcp_server.serverPort()
         status_label.setText(f"The server is running on port {port}.\nRun the "
-                "Fortune Client example now.")
+                             "Fortune Client example now.")
 
         self.fortunes = (
-                "You've been leading a dog's life. Stay off the furniture.",
-                "You've got to think about tomorrow.",
-                "You will be surprised by a loud noise.",
-                "You will feel hungry again in another hour.",
-                "You might have mail.",
-                "You cannot kill time without injuring eternity.",
-                "Computers are not intelligent. They only think they are.")
+            "You've been leading a dog's life. Stay off the furniture.",
+            "You've got to think about tomorrow.",
+            "You will be surprised by a loud noise.",
+            "You will feel hungry again in another hour.",
+            "You might have mail.",
+            "You cannot kill time without injuring eternity.",
+            "Computers are not intelligent. They only think they are.")
 
         quit_button.clicked.connect(self.close)
         self._tcp_server.newConnection.connect(self.send_fortune)
diff --git a/examples/network/threadedfortuneserver/threadedfortuneserver.py b/examples/network/threadedfortuneserver/threadedfortuneserver.py
index bb86d9081..c75e2bc57 100644
--- a/examples/network/threadedfortuneserver/threadedfortuneserver.py
+++ b/examples/network/threadedfortuneserver/threadedfortuneserver.py
@@ -75,7 +75,7 @@ class Dialog(QDialog):
         if not self.server.listen():
             reason = self.server.errorString()
             QMessageBox.critical(self, "Threaded Fortune Server",
-                    f"Unable to start the server: {reason}.")
+                                 f"Unable to start the server: {reason}.")
             self.close()
             return
 
@@ -89,7 +89,7 @@ class Dialog(QDialog):
         port = self.server.serverPort()
 
         status_label.setText(f"The server is running on\n\nIP: {ip_address}\nport: {port}\n\n"
-                "Run the Fortune Client example now.")
+                             "Run the Fortune Client example now.")
 
         quit_button.clicked.connect(self.close)