diff --git a/openlp/core/lib/db.py b/openlp/core/lib/db.py
index 436ea82de..e097983eb 100644
--- a/openlp/core/lib/db.py
+++ b/openlp/core/lib/db.py
@@ -33,7 +33,8 @@ from urllib import quote_plus as urlquote
 
 from PyQt4 import QtCore
 from sqlalchemy import Table, MetaData, Column, types, create_engine
-from sqlalchemy.exc import SQLAlchemyError, InvalidRequestError, DBAPIError
+from sqlalchemy.exc import SQLAlchemyError, InvalidRequestError, DBAPIError, \
+    OperationalError
 from sqlalchemy.orm import scoped_session, sessionmaker, mapper
 from sqlalchemy.pool import NullPool
 
diff --git a/openlp/core/ui/generaltab.py b/openlp/core/ui/generaltab.py
index 7c1156078..b4d424b10 100644
--- a/openlp/core/ui/generaltab.py
+++ b/openlp/core/ui/generaltab.py
@@ -295,7 +295,8 @@ class GeneralTab(SettingsTab):
             QtCore.QVariant(False)).toBool())
         self.timeoutSpinBox.setValue(settings.value(u'loop delay',
            QtCore.QVariant(5)).toInt()[0])
-        self.monitorRadioButton.setChecked(not settings.value(u'override position',
+        self.monitorRadioButton.setChecked(
+            not settings.value(u'override position',
             QtCore.QVariant(False)).toBool())
         self.overrideRadioButton.setChecked(settings.value(u'override position',
             QtCore.QVariant(False)).toBool())
@@ -313,11 +314,14 @@ class GeneralTab(SettingsTab):
             u'audio repeat list', QtCore.QVariant(False)).toBool())
         settings.endGroup()
         self.monitorComboBox.setDisabled(self.overrideRadioButton.isChecked())
-        self.displayOnMonitorCheck.setDisabled(self.overrideRadioButton.isChecked())
+        self.displayOnMonitorCheck.setDisabled(
+            self.overrideRadioButton.isChecked())
         self.customXValueEdit.setEnabled(self.overrideRadioButton.isChecked())
         self.customYValueEdit.setEnabled(self.overrideRadioButton.isChecked())
-        self.customHeightValueEdit.setEnabled(self.overrideRadioButton.isChecked())
-        self.customWidthValueEdit.setEnabled(self.overrideRadioButton.isChecked())
+        self.customHeightValueEdit.setEnabled(
+            self.overrideRadioButton.isChecked())
+        self.customWidthValueEdit.setEnabled(
+            self.overrideRadioButton.isChecked())
         self.display_changed = False
         settings.beginGroup(self.settingsSection)
 
diff --git a/openlp/core/ui/media/mediacontroller.py b/openlp/core/ui/media/mediacontroller.py
index 33ce2ad84..257fa4a19 100644
--- a/openlp/core/ui/media/mediacontroller.py
+++ b/openlp/core/ui/media/mediacontroller.py
@@ -281,7 +281,8 @@ class MediaController(object):
         controller.mediabar.setVisible(value)
         if controller.isLive and controller.display:
             if self.curDisplayMediaPlayer and value:
-                if self.curDisplayMediaPlayer[controller.display] != self.mediaPlayers[u'webkit']:
+                if self.curDisplayMediaPlayer[controller.display] != \
+                    self.mediaPlayers[u'webkit']:
                     controller.display.setTransparency(False)
         # Special controls: Here media type specific Controls will be enabled
         # (e.g. for DVD control, ...)
diff --git a/openlp/core/ui/slidecontroller.py b/openlp/core/ui/slidecontroller.py
index 420c3c6f2..6454dab96 100644
--- a/openlp/core/ui/slidecontroller.py
+++ b/openlp/core/ui/slidecontroller.py
@@ -563,7 +563,8 @@ class SlideController(Controller):
                     Receiver.send_message('servicemanager_previous_item')
                 elif keypressCommand == ServiceItemAction.PreviousLastSlide:
                     # Go to the last slide of the previous item
-                    Receiver.send_message('servicemanager_previous_item', u'last slide')
+                    Receiver.send_message('servicemanager_previous_item',
+                        u'last slide')
                 else:
                     Receiver.send_message('servicemanager_next_item')
             self.keypress_loop = False
@@ -1183,7 +1184,8 @@ class SlideController(Controller):
                 if self.slide_limits == SlideLimits.Wrap:
                     row = self.previewListWidget.rowCount() - 1
                 elif self.isLive and self.slide_limits == SlideLimits.Next:
-                    self.keypress_queue.append(ServiceItemAction.PreviousLastSlide)
+                    self.keypress_queue.append(
+                        ServiceItemAction.PreviousLastSlide)
                     self._process_queue()
                     return
                 else:
diff --git a/openlp/plugins/remotes/lib/remotetab.py b/openlp/plugins/remotes/lib/remotetab.py
index 70005226c..845542c45 100644
--- a/openlp/plugins/remotes/lib/remotetab.py
+++ b/openlp/plugins/remotes/lib/remotetab.py
@@ -87,7 +87,8 @@ class RemoteTab(SettingsTab):
         self.qrLayout = QtGui.QVBoxLayout(self.androidAppGroupBox)
         self.qrLayout.setObjectName(u'qrLayout')
         self.qrCodeLabel = QtGui.QLabel(self.androidAppGroupBox)
-        self.qrCodeLabel.setPixmap(QtGui.QPixmap(u':/remotes/android_app_qr.png'))
+        self.qrCodeLabel.setPixmap(QtGui.QPixmap(
+            u':/remotes/android_app_qr.png'))
         self.qrCodeLabel.setAlignment(QtCore.Qt.AlignCenter)
         self.qrCodeLabel.setObjectName(u'qrCodeLabel')
         self.qrLayout.addWidget(self.qrCodeLabel)