diff --git a/changelog.md b/changelog.md
index 57c10b0..dbcc5ff 100644
--- a/changelog.md
+++ b/changelog.md
@@ -17,6 +17,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
  - call isdigit() method on the string directly instead of str.isdigit() (results in unicode error)
  - added flake8 testing to travis-ci 
  - updated code to make python3 compatible
+ - updated code for pep9 styling
 
 ### Removed
 
diff --git a/resources/lib/advanced_editor.py b/resources/lib/advanced_editor.py
index 38428f3..72d0a90 100644
--- a/resources/lib/advanced_editor.py
+++ b/resources/lib/advanced_editor.py
@@ -16,7 +16,7 @@ class BackupSetManager:
         self._readFile()
 
     def addSet(self, aSet):
-        self.paths[aSet['name']] = {'root': aSet['root'], 'dirs': [{"type":"include", "path": aSet['root'], 'recurse': True}]}
+        self.paths[aSet['name']] = {'root': aSet['root'], 'dirs': [{"type": "include", "path": aSet['root'], 'recurse': True}]}
 
         # save the file
         self._writeFile()
@@ -60,7 +60,7 @@ class BackupSetManager:
         aFile.close()
 
     def _readFile(self):
-        
+
         if(xbmcvfs.exists(self.jsonFile)):
 
             # read in the custom file
@@ -73,6 +73,7 @@ class BackupSetManager:
             # write a blank file
             self._writeFile()
 
+
 class AdvancedBackupEditor:
     dialog = None
 
@@ -128,7 +129,7 @@ class AdvancedBackupEditor:
                 elif(aDir['type'] == 'include'):
                     options.append(xbmcgui.ListItem(self._cleanPath(rootPath, aDir['path']), "%s: %s | %s: %s" % ("Type", utils.getString(30134), "Include Sub Folders", str(aDir['recurse']))))
 
-            optionSelected = self.dialog.select(utils.getString(30122) + ' ' +  name, options, useDetails=True)
+            optionSelected = self.dialog.select(utils.getString(30122) + ' ' + name, options, useDetails=True)
 
             if(optionSelected == 0 or optionSelected == 1):
                 # add a folder, will equal root if cancel is hit
diff --git a/resources/lib/authorizers.py b/resources/lib/authorizers.py
index 9a1e914..4ba4469 100644
--- a/resources/lib/authorizers.py
+++ b/resources/lib/authorizers.py
@@ -33,7 +33,7 @@ class DropboxAuthorizer:
     def isAuthorized(self):
         user_token = self._getToken()
 
-        return user_token != ''  
+        return user_token != ''
 
     def authorize(self):
         result = True
@@ -66,7 +66,7 @@ class DropboxAuthorizer:
             utils.log("Error: %s" % (e,))
             result = False
 
-        return result;
+        return result
 
     # return the DropboxClient, or None if can't be created
     def getClient(self):
diff --git a/resources/lib/backup.py b/resources/lib/backup.py
index c46bfcf..a040885 100644
--- a/resources/lib/backup.py
+++ b/resources/lib/backup.py
@@ -11,6 +11,7 @@ from . progressbar import BackupProgressBar
 from resources.lib.guisettings import GuiSettingsManager
 from resources.lib.extractor import ZipExtractor
 
+
 def folderSort(aKey):
     result = aKey[0]
 
@@ -56,7 +57,7 @@ class XbmcBackup:
             self.remote_vfs = XBMCFileSystem(utils.getSetting('remote_path_2'))
             utils.setSetting("remote_path", "")
         elif(utils.getSetting('remote_selection') == '0'):
-            self.remote_base_path = utils.getSetting('remote_path');
+            self.remote_base_path = utils.getSetting('remote_path')
             self.remote_vfs = XBMCFileSystem(utils.getSetting("remote_path"))
         elif(utils.getSetting('remote_selection') == '2'):
             self.remote_base_path = "/"
@@ -252,7 +253,7 @@ class XbmcBackup:
                 return
 
             valFile = self._checkValidationFile(self.remote_vfs.root_path)
-            if(valFile == None):
+            if(valFile is None):
                 # don't continue
                 return
 
@@ -274,7 +275,7 @@ class XbmcBackup:
                     self._createResumeBackupFile()
 
                     # do not continue running
-                    xbmcgui.Dialog().ok(utils.getString(30077), utils.getString(30078)) 
+                    xbmcgui.Dialog().ok(utils.getString(30077), utils.getString(30078))
                     return
 
             # use a multiselect dialog to select sets to restore
@@ -346,7 +347,7 @@ class XbmcBackup:
 
             self.remote_vfs.set_root(self.remote_vfs.root_path + time.strftime("%Y%m%d%H%M") + "/")
             progressBarTitle = progressBarTitle + utils.getString(30023) + ": " + utils.getString(30016)
-        elif(mode == self.Restore and self.restore_point != None and self.remote_vfs.root_path != ''):
+        elif(mode == self.Restore and self.restore_point is not None and self.remote_vfs.root_path != ''):
             if(self.restore_point.split('.')[-1] != 'zip'):
                 self.remote_vfs.set_root(self.remote_vfs.root_path + self.restore_point + "/")
             progressBarTitle = progressBarTitle + utils.getString(30023) + ": " + utils.getString(30017)