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 <[email protected]>

7 files changed, 16 insertions, 17 deletions

diff --git a/examples/bluetooth/btscanner/device.py b/examples/bluetooth/btscanner/device.py
index e51160b84..c75f5b8a1 100644
--- a/examples/bluetooth/btscanner/device.py
+++ b/examples/bluetooth/btscanner/device.py
@@ -46,7 +46,7 @@ class DeviceDiscoveryDialog(QDialog):
             item = QListWidgetItem(label)
             pairing_status = self._local_device.pairingStatus(info.address())
             if (pairing_status == QBluetoothLocalDevice.Paired
-                or pairing_status == QBluetoothLocalDevice.AuthorizedPaired):
+                    or pairing_status == QBluetoothLocalDevice.AuthorizedPaired):
                 item.setForeground(QColor(Qt.green))
             else:
                 item.setForeground(QColor(Qt.black))
@@ -123,7 +123,8 @@ class DeviceDiscoveryDialog(QDialog):
         items = self._ui.list.findItems(address.toString(), Qt.MatchContains)
 
         color = QColor(Qt.red)
-        if pairing == QBluetoothLocalDevice.Paired or pairing == QBluetoothLocalDevice.AuthorizedPaired:
+        if (pairing == QBluetoothLocalDevice.Paired
+                or pairing == QBluetoothLocalDevice.AuthorizedPaired):
             color = QColor(Qt.green)
         for item in items:
             item.setForeground(color)
diff --git a/examples/bluetooth/heartrate_game/devicehandler.py b/examples/bluetooth/heartrate_game/devicehandler.py
index 85d160c4d..ead73ecc2 100644
--- a/examples/bluetooth/heartrate_game/devicehandler.py
+++ b/examples/bluetooth/heartrate_game/devicehandler.py
@@ -166,7 +166,8 @@ class DeviceHandler(BluetoothBaseClass):
 #! [Filter HeartRate service 2]
         # If heartRateService found, create new service
         if self.m_foundHeartRateService:
-            self.m_service = self.m_control.createServiceObject(QBluetoothUuid(QBluetoothUuid.ServiceClassUuid.HeartRate), self)
+            self.m_service = self.m_control.createServiceObject(
+                QBluetoothUuid(QBluetoothUuid.ServiceClassUuid.HeartRate), self)
 
         if self.m_service:
             self.m_service.stateChanged.connect(self.serviceStateChanged)
@@ -185,9 +186,11 @@ class DeviceHandler(BluetoothBaseClass):
             self.info = "Discovering services..."
         elif switch == QLowEnergyService.RemoteServiceDiscovered:
             self.info = "Service discovered."
-            hrChar = self.m_service.characteristic(QBluetoothUuid(QBluetoothUuid.CharacteristicType.HeartRateMeasurement))
+            hrChar = self.m_service.characteristic(
+                QBluetoothUuid(QBluetoothUuid.CharacteristicType.HeartRateMeasurement))
             if hrChar.isValid():
-                self.m_notificationDesc = hrChar.descriptor(QBluetoothUuid.DescriptorType.ClientCharacteristicConfiguration)
+                self.m_notificationDesc = hrChar.descriptor(
+                    QBluetoothUuid.DescriptorType.ClientCharacteristicConfiguration)
                 if self.m_notificationDesc.isValid():
                     self.m_service.writeDescriptor(self.m_notificationDesc,
                                                    QByteArray.fromHex(b"0100"))
@@ -233,7 +236,7 @@ class DeviceHandler(BluetoothBaseClass):
     @Slot(QLowEnergyCharacteristic, QByteArray)
     def confirmedDescriptorWrite(self, d, value):
         if (d.isValid() and d == self.m_notificationDesc
-            and value == QByteArray.fromHex(b"0000")):
+                and value == QByteArray.fromHex(b"0000")):
             # disabled notifications . assume disconnect intent
             self.m_control.disconnectFromDevice()
             self.m_service = None
@@ -244,7 +247,7 @@ class DeviceHandler(BluetoothBaseClass):
 
         # disable notifications
         if (self.m_notificationDesc.isValid() and self.m_service
-            and self.m_notificationDesc.value() == QByteArray.fromHex(b"0100")):
+                and self.m_notificationDesc.value() == QByteArray.fromHex(b"0100")):
             self.m_service.writeDescriptor(self.m_notificationDesc,
                                            QByteArray.fromHex(b"0000"))
         else:
@@ -301,6 +304,6 @@ class DeviceHandler(BluetoothBaseClass):
             self.m_sum += value
             self.m_avg = float(self.m_sum) / len(self.m_measurements)
             self.m_calories = ((-55.0969 + (0.6309 * self.m_avg) + (0.1988 * 94)
-                               + (0.2017 * 24)) / 4.184) * 60 * self.time / 3600
+                                + (0.2017 * 24)) / 4.184) * 60 * self.time / 3600
 
         self.statsChanged.emit()
diff --git a/examples/bluetooth/heartrate_server/heartrate_server.py b/examples/bluetooth/heartrate_server/heartrate_server.py
index 801584565..abbf4eb7f 100644
--- a/examples/bluetooth/heartrate_server/heartrate_server.py
+++ b/examples/bluetooth/heartrate_server/heartrate_server.py
@@ -39,8 +39,8 @@ if __name__ == '__main__':
     char_data.setUuid(QBluetoothUuid.CharacteristicType.HeartRateMeasurement)
     char_data.setValue(QByteArray(2, 0))
     char_data.setProperties(QLowEnergyCharacteristic.Notify)
-    client_config = QLowEnergyDescriptorData(QBluetoothUuid.DescriptorType.ClientCharacteristicConfiguration,
-                                             QByteArray(2, 0))
+    client_config = QLowEnergyDescriptorData(
+        QBluetoothUuid.DescriptorType.ClientCharacteristicConfiguration, QByteArray(2, 0))
     char_data.addDescriptor(client_config)
 
     service_data = QLowEnergyServiceData()
@@ -66,7 +66,8 @@ if __name__ == '__main__':
         value = QByteArray()
         value.append(chr(0))  # Flags that specify the format of the value.
         value.append(chr(current_heart_rate))  # Actual value.
-        characteristic = service.characteristic(QBluetoothUuid.CharacteristicType.HeartRateMeasurement)
+        characteristic = service.characteristic(
+            QBluetoothUuid.CharacteristicType.HeartRateMeasurement)
         assert characteristic.isValid()
         # Potentially causes notification.
         service.writeCharacteristic(characteristic, value)
diff --git a/examples/bluetooth/lowenergyscanner/characteristicinfo.py b/examples/bluetooth/lowenergyscanner/characteristicinfo.py
index a0e9df77e..42bde8753 100644
--- a/examples/bluetooth/lowenergyscanner/characteristicinfo.py
+++ b/examples/bluetooth/lowenergyscanner/characteristicinfo.py
@@ -85,4 +85,3 @@ class CharacteristicInfo(QObject):
     def characteristic(self, characteristic):
         self._characteristic = characteristic
         self.characteristic_changed.emit()
-
diff --git a/examples/bluetooth/lowenergyscanner/device.py b/examples/bluetooth/lowenergyscanner/device.py
index 95d1fe158..09108cf69 100644
--- a/examples/bluetooth/lowenergyscanner/device.py
+++ b/examples/bluetooth/lowenergyscanner/device.py
@@ -276,5 +276,3 @@ class Device(QObject):
     def stop_device_discovery(self):
         if self.discovery_agent.isActive():
             self.discovery_agent.stop()
-
-
diff --git a/examples/bluetooth/lowenergyscanner/deviceinfo.py b/examples/bluetooth/lowenergyscanner/deviceinfo.py
index edcbef89d..35a568821 100644
--- a/examples/bluetooth/lowenergyscanner/deviceinfo.py
+++ b/examples/bluetooth/lowenergyscanner/deviceinfo.py
@@ -32,4 +32,3 @@ class DeviceInfo(QObject):
     def set_device(self, device):
         self._device = device
         self.device_changed.emit()
-
diff --git a/examples/bluetooth/lowenergyscanner/serviceinfo.py b/examples/bluetooth/lowenergyscanner/serviceinfo.py
index 092e9898f..cddffe663 100644
--- a/examples/bluetooth/lowenergyscanner/serviceinfo.py
+++ b/examples/bluetooth/lowenergyscanner/serviceinfo.py
@@ -62,5 +62,3 @@ class ServiceInfo(QObject):
     @service.setter
     def service(self, service):
         self._service = service
-
-