diff --git a/openlp/core/lib/pluginmanager.py b/openlp/core/lib/pluginmanager.py
index 7a54b4c64..2248d0ddd 100644
--- a/openlp/core/lib/pluginmanager.py
+++ b/openlp/core/lib/pluginmanager.py
@@ -31,7 +31,7 @@ import os
 import sys
 import logging
 
-from openlp.core.lib import Plugin, StringContent, PluginStatus
+from openlp.core.lib import Plugin, PluginStatus
 
 log = logging.getLogger(__name__)
 
diff --git a/openlp/core/lib/serviceitem.py b/openlp/core/lib/serviceitem.py
index 1245988b4..2aa1efbc2 100644
--- a/openlp/core/lib/serviceitem.py
+++ b/openlp/core/lib/serviceitem.py
@@ -36,7 +36,6 @@ import os
 import uuid
 
 from openlp.core.lib import build_icon, clean_tags, expand_tags, translate
-from openlp.core.lib.ui import UiStrings
 
 log = logging.getLogger(__name__)
 
diff --git a/openlp/core/lib/spelltextedit.py b/openlp/core/lib/spelltextedit.py
index 57a176a69..0d277b9fe 100644
--- a/openlp/core/lib/spelltextedit.py
+++ b/openlp/core/lib/spelltextedit.py
@@ -57,7 +57,7 @@ class SpellTextEdit(QtGui.QPlainTextEdit):
                 self.dictionary = enchant.Dict()
                 self.highlighter = Highlighter(self.document())
                 self.highlighter.spellingDictionary = self.dictionary
-            except Error, DictNotFoundError:
+            except (Error, DictNotFoundError):
                 ENCHANT_AVAILABLE = False
                 log.debug(u'Could not load default dictionary')
 
diff --git a/openlp/core/lib/theme.py b/openlp/core/lib/theme.py
index 7ad50490d..c87f9aa2e 100644
--- a/openlp/core/lib/theme.py
+++ b/openlp/core/lib/theme.py
@@ -34,8 +34,7 @@ import logging
 from xml.dom.minidom import Document
 from lxml import etree, objectify
 
-from openlp.core.lib import str_to_bool, translate
-from openlp.core.lib.ui import UiStrings
+from openlp.core.lib import str_to_bool
 
 log = logging.getLogger(__name__)
 
diff --git a/openlp/core/ui/displaytagdialog.py b/openlp/core/ui/displaytagdialog.py
index 65e900bbb..328fcd137 100644
--- a/openlp/core/ui/displaytagdialog.py
+++ b/openlp/core/ui/displaytagdialog.py
@@ -28,7 +28,7 @@
 from PyQt4 import QtCore, QtGui
 
 from openlp.core.lib import translate
-from openlp.core.lib.ui import UiStrings, create_accept_reject_button_box
+from openlp.core.lib.ui import UiStrings
 
 class Ui_DisplayTagDialog(object):
 
diff --git a/openlp/core/ui/firsttimewizard.py b/openlp/core/ui/firsttimewizard.py
index 64d9cbf8d..7e94b4595 100644
--- a/openlp/core/ui/firsttimewizard.py
+++ b/openlp/core/ui/firsttimewizard.py
@@ -49,7 +49,7 @@ class Ui_FirstTimeWizard(object):
         FirstTimeWizard.resize(550, 386)
         FirstTimeWizard.setModal(True)
         FirstTimeWizard.setWizardStyle(QtGui.QWizard.ModernStyle)
-        FirstTimeWizard.setOptions(QtGui.QWizard.IndependentPages|
+        FirstTimeWizard.setOptions(QtGui.QWizard.IndependentPages |
             QtGui.QWizard.NoBackButtonOnStartPage |
             QtGui.QWizard.NoBackButtonOnLastPage)
         self.finishButton = self.button(QtGui.QWizard.FinishButton)
@@ -81,9 +81,9 @@ class Ui_FirstTimeWizard(object):
         self.pluginLayout.addWidget(self.imageCheckBox)
         self.presentationCheckBox = QtGui.QCheckBox(self.pluginPage)
         if sys.platform == "darwin":
-             self.presentationCheckBox.setChecked(False)
+            self.presentationCheckBox.setChecked(False)
         else:
-             self.presentationCheckBox.setChecked(True)
+            self.presentationCheckBox.setChecked(True)
         self.presentationCheckBox.setObjectName(u'presentationCheckBox')
         self.pluginLayout.addWidget(self.presentationCheckBox)
         self.mediaCheckBox = QtGui.QCheckBox(self.pluginPage)
diff --git a/openlp/core/ui/settingsform.py b/openlp/core/ui/settingsform.py
index 711cac7c2..49d27a466 100644
--- a/openlp/core/ui/settingsform.py
+++ b/openlp/core/ui/settingsform.py
@@ -29,7 +29,7 @@ The :mod:`settingsform` provides a user interface for the OpenLP settings
 """
 import logging
 
-from PyQt4 import QtGui, QtCore
+from PyQt4 import QtGui
 
 from openlp.core.lib import Receiver, build_icon, PluginStatus
 from openlp.core.ui import AdvancedTab, GeneralTab, ThemesTab
diff --git a/openlp/core/ui/shortcutlistform.py b/openlp/core/ui/shortcutlistform.py
index 6bdcc46bc..1eccddc95 100644
--- a/openlp/core/ui/shortcutlistform.py
+++ b/openlp/core/ui/shortcutlistform.py
@@ -247,7 +247,8 @@ class ShortcutListForm(QtGui.QDialog, Ui_ShortcutListDialog):
                     alternate_label_text = action.defaultShortcuts[1].toString()
             shortcuts = self._actionShortcuts(action)
             # We do not want to loose pending changes, that is why we have to
-            # keep the text when, this function has not been triggered by a signal.
+            # keep the text when, this function has not been triggered by a
+            # signal.
             if item is None:
                 primary_text = self.primaryPushButton.text()
                 alternate_text = self.alternatePushButton.text()
@@ -280,7 +281,8 @@ class ShortcutListForm(QtGui.QDialog, Ui_ShortcutListDialog):
         """
         Restores all default shortcuts.
         """
-        if self.buttonBox.buttonRole(button) != QtGui.QDialogButtonBox.ResetRole:
+        if self.buttonBox.buttonRole(button) != \
+            QtGui.QDialogButtonBox.ResetRole:
             return
         if QtGui.QMessageBox.question(self,
             translate('OpenLP.ShortcutListDialog', 'Restore Default Shortcuts'),
diff --git a/openlp/core/ui/slidecontroller.py b/openlp/core/ui/slidecontroller.py
index 9f9541ba4..9d35c1166 100644
--- a/openlp/core/ui/slidecontroller.py
+++ b/openlp/core/ui/slidecontroller.py
@@ -33,8 +33,8 @@ import copy
 from PyQt4 import QtCore, QtGui
 from PyQt4.phonon import Phonon
 
-from openlp.core.lib import OpenLPToolbar, Receiver, resize_image, \
-    ItemCapabilities, translate, build_icon
+from openlp.core.lib import OpenLPToolbar, Receiver, ItemCapabilities, \
+    translate, build_icon
 from openlp.core.lib.ui import UiStrings, shortcut_action
 from openlp.core.ui import HideMode, MainDisplay, ScreenList
 from openlp.core.utils.actions import ActionList, CategoryOrder
diff --git a/openlp/core/utils/__init__.py b/openlp/core/utils/__init__.py
index 081870587..b0a28962c 100644
--- a/openlp/core/utils/__init__.py
+++ b/openlp/core/utils/__init__.py
@@ -459,25 +459,6 @@ def file_is_unicode(filename):
         return None
     return ucsfile
 
-def string_is_unicode(test_string):
-    """
-    Makes sure a string is unicode.
-
-    ``test_string``
-        The string to confirm is unicode.
-    """
-    return_string = u''
-    if not test_string:
-        return return_string
-    if isinstance(test_string, unicode):
-        return_string = test_string
-    if not isinstance(test_string, unicode):
-        try:
-            return_string = unicode(test_string, u'utf-8')
-        except UnicodeError:
-            log.exception("Error encoding string to unicode")
-    return return_string
-
 def get_uno_command():
     """
     Returns the UNO command to launch an openoffice.org instance.
@@ -510,5 +491,5 @@ from actions import ActionList
 
 __all__ = [u'AppLocation', u'get_application_version', u'check_latest_version',
     u'add_actions', u'get_filesystem_encoding', u'LanguageManager',
-    u'ActionList', u'get_web_page', u'file_is_unicode', u'string_is_unicode',
-    u'get_uno_command', u'get_uno_instance', u'delete_file']
+    u'ActionList', u'get_web_page', u'file_is_unicode', u'get_uno_command',
+    u'get_uno_instance', u'delete_file']
diff --git a/openlp/plugins/alerts/alertsplugin.py b/openlp/plugins/alerts/alertsplugin.py
index f0bf2d93e..228031842 100644
--- a/openlp/plugins/alerts/alertsplugin.py
+++ b/openlp/plugins/alerts/alertsplugin.py
@@ -27,7 +27,7 @@
 
 import logging
 
-from PyQt4 import QtCore, QtGui
+from PyQt4 import QtCore
 
 from openlp.core.lib import Plugin, StringContent, build_icon, translate
 from openlp.core.lib.db import Manager
diff --git a/openlp/plugins/bibles/forms/bibleimportform.py b/openlp/plugins/bibles/forms/bibleimportform.py
index de1574eaa..b5478e514 100644
--- a/openlp/plugins/bibles/forms/bibleimportform.py
+++ b/openlp/plugins/bibles/forms/bibleimportform.py
@@ -27,7 +27,6 @@
 """
 The bible import functions for OpenLP
 """
-import csv
 import logging
 import os
 import os.path
@@ -39,7 +38,7 @@ from openlp.core.lib import Receiver, translate
 from openlp.core.lib.db import delete_database
 from openlp.core.lib.ui import UiStrings, critical_error_message_box
 from openlp.core.ui.wizard import OpenLPWizard, WizardStrings
-from openlp.core.utils import AppLocation, string_is_unicode
+from openlp.core.utils import AppLocation
 from openlp.plugins.bibles.lib.manager import BibleFormat
 from openlp.plugins.bibles.lib.db import BiblesResourcesDB, clean_filename
 
diff --git a/openlp/plugins/bibles/forms/bibleupgradeform.py b/openlp/plugins/bibles/forms/bibleupgradeform.py
index 9ab513a24..615d4231e 100644
--- a/openlp/plugins/bibles/forms/bibleupgradeform.py
+++ b/openlp/plugins/bibles/forms/bibleupgradeform.py
@@ -38,7 +38,7 @@ from openlp.core.lib.db import delete_database
 from openlp.core.lib.ui import UiStrings, critical_error_message_box
 from openlp.core.ui.wizard import OpenLPWizard, WizardStrings
 from openlp.core.utils import AppLocation, delete_file
-from openlp.plugins.bibles.lib.db import BibleDB, BibleMeta, OldBibleDB,\
+from openlp.plugins.bibles.lib.db import BibleDB, BibleMeta, OldBibleDB, \
     BiblesResourcesDB, clean_filename
 from openlp.plugins.bibles.lib.http import BSExtract, BGExtract, CWExtract
 
diff --git a/openlp/plugins/bibles/lib/db.py b/openlp/plugins/bibles/lib/db.py
index 68f105dff..5273f670c 100644
--- a/openlp/plugins/bibles/lib/db.py
+++ b/openlp/plugins/bibles/lib/db.py
@@ -36,7 +36,7 @@ from sqlalchemy import Column, ForeignKey, or_, Table, types
 from sqlalchemy.orm import class_mapper, mapper, relation
 from sqlalchemy.orm.exc import UnmappedClassError
 
-from openlp.core.lib import Receiver, translate, check_directory_exists
+from openlp.core.lib import Receiver, translate
 from openlp.core.lib.db import BaseModel, init_db, Manager
 from openlp.core.lib.ui import critical_error_message_box
 from openlp.core.utils import AppLocation
diff --git a/openlp/plugins/bibles/lib/http.py b/openlp/plugins/bibles/lib/http.py
index ee644a8d5..290da104c 100644
--- a/openlp/plugins/bibles/lib/http.py
+++ b/openlp/plugins/bibles/lib/http.py
@@ -29,9 +29,7 @@ The :mod:`http` module enables OpenLP to retrieve scripture from bible
 websites.
 """
 import logging
-import os
 import re
-import sqlite3
 import socket
 import urllib
 from HTMLParser import HTMLParseError
@@ -40,7 +38,7 @@ from BeautifulSoup import BeautifulSoup, NavigableString, Tag
 
 from openlp.core.lib import Receiver, translate
 from openlp.core.lib.ui import critical_error_message_box
-from openlp.core.utils import AppLocation, get_web_page
+from openlp.core.utils import get_web_page
 from openlp.plugins.bibles.lib import SearchResults
 from openlp.plugins.bibles.lib.db import BibleDB, BiblesResourcesDB, \
     Book
diff --git a/openlp/plugins/bibles/lib/manager.py b/openlp/plugins/bibles/lib/manager.py
index 9a0b20820..354332083 100644
--- a/openlp/plugins/bibles/lib/manager.py
+++ b/openlp/plugins/bibles/lib/manager.py
@@ -34,7 +34,7 @@ from openlp.core.lib import Receiver, SettingsManager, translate
 from openlp.core.lib.ui import critical_error_message_box
 from openlp.core.utils import AppLocation, delete_file
 from openlp.plugins.bibles.lib import parse_reference
-from openlp.plugins.bibles.lib.db import BibleDB, BibleMeta, OldBibleDB
+from openlp.plugins.bibles.lib.db import BibleDB, BibleMeta
 from csvbible import CSVBible
 from http import HTTPBible
 from opensong import OpenSongBible
diff --git a/openlp/plugins/remotes/lib/httpserver.py b/openlp/plugins/remotes/lib/httpserver.py
index 34271019d..836b3d0ae 100644
--- a/openlp/plugins/remotes/lib/httpserver.py
+++ b/openlp/plugins/remotes/lib/httpserver.py
@@ -357,7 +357,8 @@ class HttpConnection(object):
         if ext == u'.html':
             mimetype = u'text/html'
             variables = self.template_vars
-            html = Template(filename=path, input_encoding=u'utf-8', output_encoding=u'utf-8').render(**variables)
+            html = Template(filename=path, input_encoding=u'utf-8',
+                output_encoding=u'utf-8').render(**variables)
         elif ext == u'.css':
             mimetype = u'text/css'
         elif ext == u'.js':
diff --git a/openlp/plugins/songs/lib/db.py b/openlp/plugins/songs/lib/db.py
index 93d56a05a..c5c019c3c 100644
--- a/openlp/plugins/songs/lib/db.py
+++ b/openlp/plugins/songs/lib/db.py
@@ -29,7 +29,7 @@ The :mod:`db` module provides the database and schema that is the backend for
 the Songs plugin
 """
 
-from sqlalchemy import Column, ForeignKey, Index, Table, types
+from sqlalchemy import Column, ForeignKey, Table, types
 from sqlalchemy.orm import mapper, relation
 
 from openlp.core.lib.db import BaseModel, init_db
diff --git a/openlp/plugins/songs/lib/easislidesimport.py b/openlp/plugins/songs/lib/easislidesimport.py
index b1eaceeaf..b24287130 100644
--- a/openlp/plugins/songs/lib/easislidesimport.py
+++ b/openlp/plugins/songs/lib/easislidesimport.py
@@ -26,13 +26,10 @@
 ###############################################################################
 
 import logging
-import os
 import re
 
 from lxml import etree, objectify
 
-from openlp.core.lib import translate
-from openlp.core.ui.wizard import WizardStrings
 from openlp.plugins.songs.lib import VerseType
 from openlp.plugins.songs.lib.songimport import SongImport
 
diff --git a/openlp/plugins/songs/lib/ewimport.py b/openlp/plugins/songs/lib/ewimport.py
index 448d629d5..820cf595a 100644
--- a/openlp/plugins/songs/lib/ewimport.py
+++ b/openlp/plugins/songs/lib/ewimport.py
@@ -34,7 +34,6 @@ import struct
 import re
 
 from openlp.core.lib import translate
-from openlp.core.ui.wizard import WizardStrings
 from openlp.plugins.songs.lib import VerseType
 from openlp.plugins.songs.lib import retrieve_windows_encoding
 from songimport import SongImport
diff --git a/openlp/plugins/songs/lib/opensongimport.py b/openlp/plugins/songs/lib/opensongimport.py
index 834255fd0..7fca88262 100644
--- a/openlp/plugins/songs/lib/opensongimport.py
+++ b/openlp/plugins/songs/lib/opensongimport.py
@@ -26,7 +26,6 @@
 ###############################################################################
 
 import logging
-import os
 import re
 
 from lxml import objectify
diff --git a/openlp/plugins/songs/lib/songbeamerimport.py b/openlp/plugins/songs/lib/songbeamerimport.py
index 3a8d63783..400db8f9a 100644
--- a/openlp/plugins/songs/lib/songbeamerimport.py
+++ b/openlp/plugins/songs/lib/songbeamerimport.py
@@ -36,7 +36,6 @@ import re
 
 from openlp.plugins.songs.lib import VerseType
 from openlp.plugins.songs.lib.songimport import SongImport
-from openlp.plugins.songs.lib.ui import SongStrings
 
 log = logging.getLogger(__name__)
 
diff --git a/openlp/plugins/songs/lib/songimport.py b/openlp/plugins/songs/lib/songimport.py
index 781321fe4..dc45764e4 100644
--- a/openlp/plugins/songs/lib/songimport.py
+++ b/openlp/plugins/songs/lib/songimport.py
@@ -29,9 +29,8 @@ import re
 
 from PyQt4 import QtCore
 
-from openlp.core.lib import Receiver, translate, check_directory_exists
+from openlp.core.lib import Receiver, translate
 from openlp.core.ui.wizard import WizardStrings
-from openlp.core.utils import AppLocation
 from openlp.plugins.songs.lib import clean_song, VerseType
 from openlp.plugins.songs.lib.db import Song, Author, Topic, Book, MediaFile
 from openlp.plugins.songs.lib.ui import SongStrings
diff --git a/openlp/plugins/songs/lib/wowimport.py b/openlp/plugins/songs/lib/wowimport.py
index 0648abe66..e2a5820a5 100644
--- a/openlp/plugins/songs/lib/wowimport.py
+++ b/openlp/plugins/songs/lib/wowimport.py
@@ -31,7 +31,6 @@ Worship songs into the OpenLP database.
 import os
 import logging
 
-from openlp.core.ui.wizard import WizardStrings
 from openlp.plugins.songs.lib.songimport import SongImport
 
 BLOCK_TYPES = (u'V', u'C', u'B')
diff --git a/openlp/plugins/songusage/songusageplugin.py b/openlp/plugins/songusage/songusageplugin.py
index 575295f37..cc143b986 100644
--- a/openlp/plugins/songusage/songusageplugin.py
+++ b/openlp/plugins/songusage/songusageplugin.py
@@ -33,7 +33,7 @@ from PyQt4 import QtCore, QtGui
 from openlp.core.lib import Plugin, StringContent, Receiver, build_icon, \
     translate
 from openlp.core.lib.db import Manager
-from openlp.core.lib.ui import base_action, shortcut_action, UiStrings
+from openlp.core.lib.ui import base_action, shortcut_action
 from openlp.core.utils.actions import ActionList
 from openlp.plugins.songusage.forms import SongUsageDetailForm, \
     SongUsageDeleteForm