diff --git a/LabelKey.glyphsPalette/Contents/Info.plist b/LabelKey.glyphsPalette/Contents/Info.plist
index fd13dba..c0d8068 100644
--- a/LabelKey.glyphsPalette/Contents/Info.plist
+++ b/LabelKey.glyphsPalette/Contents/Info.plist
@@ -1,11 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
 	<key>CFBundleDevelopmentRegion</key>
-	<string>English</string>
-	<key>CFBundleDisplayName</key>
-	<string>Label Key</string>
+	<string>en</string>
 	<key>CFBundleExecutable</key>
 	<string>plugin</string>
 	<key>CFBundleIdentifier</key>
@@ -14,12 +12,10 @@
 	<string>6.0</string>
 	<key>CFBundleName</key>
 	<string>Label Key</string>
-	<key>CFBundlePackageType</key>
-	<string>BNDL</string>
-	<key>CFBundleVersion</key>
-	<string>2.0</string>
 	<key>CFBundleShortVersionString</key>
 	<string>2.0</string>
+	<key>CFBundleVersion</key>
+	<string>3</string>
 	<key>UpdateFeedURL</key>
 	<string>https://github.com/RobertPratley/labelKey/LabelKey.glyphsPalette/Contents/Info.plist</string>
 	<key>productPageURL</key>
@@ -30,9 +26,5 @@
 	<string>Copyright, RobertPratley, 2017</string>
 	<key>NSPrincipalClass</key>
 	<string>labelKey</string>
-	<key>PyMainFileNames</key>
-	<array>
-		<string>../MacOS/main.py</string>
-	</array>
 </dict>
 </plist>
diff --git a/LabelKey.glyphsPalette/Contents/MacOS/main.py b/LabelKey.glyphsPalette/Contents/MacOS/main.py
deleted file mode 100644
index 98f307d..0000000
--- a/LabelKey.glyphsPalette/Contents/MacOS/main.py
+++ /dev/null
@@ -1,11 +0,0 @@
-def _run(*scripts):
-	global __file__
-	import os, sys #, site
-	sys.frozen = 'macosx_plugin'
-	base = os.environ['RESOURCEPATH']
-	for script in scripts:
-		path = os.path.join(base, script)
-		__file__ = path
-		execfile(path, globals(), globals())
-
-_run('plugin.py')
diff --git a/LabelKey.glyphsPalette/Contents/MacOS/plugin b/LabelKey.glyphsPalette/Contents/MacOS/plugin
old mode 100644
new mode 100755
index b21f0e4..3d1b859
Binary files a/LabelKey.glyphsPalette/Contents/MacOS/plugin and b/LabelKey.glyphsPalette/Contents/MacOS/plugin differ
diff --git a/LabelKey.glyphsPalette/Contents/PkgInfo b/LabelKey.glyphsPalette/Contents/PkgInfo
deleted file mode 100644
index 19a9cf6..0000000
--- a/LabelKey.glyphsPalette/Contents/PkgInfo
+++ /dev/null
@@ -1 +0,0 @@
-BNDL????
\ No newline at end of file
diff --git a/LabelKey.glyphsPalette/Contents/Resources/plugin.py b/LabelKey.glyphsPalette/Contents/Resources/plugin.py
index 0641f38..3a56e14 100644
--- a/LabelKey.glyphsPalette/Contents/Resources/plugin.py
+++ b/LabelKey.glyphsPalette/Contents/Resources/plugin.py
@@ -1,4 +1,5 @@
 # encoding: utf-8
+from __future__ import division, print_function, unicode_literals
 
 ###########################################################################################################
 #
@@ -11,6 +12,7 @@
 #
 ###########################################################################################################
 from vanilla import *
+import objc
 import re
 import os
 import codecs
@@ -19,8 +21,8 @@
 
 class labelKey(PalettePlugin):
 
-
-	def settings( self ):
+	@objc.python_method
+	def settings(self):
 		self.name = 'Label Key'
 		self.width = 160
 		self.elementHeight = 16
@@ -51,7 +53,9 @@ def settings( self ):
 			color = NSUnarchiver.unarchiveObjectWithData_(colorData)
 			colours.append(color)
 		self.colours = dict(zip(colorKeys, colours))
+		self.order = []
 
+	@objc.python_method
 	def update(self, sender):
 		if hasattr(self.paletteView.frame, 'labels'):
 			delattr(self.paletteView.frame, 'labels')
@@ -62,7 +66,8 @@ def update(self, sender):
 		newHeight = self.elementHeight * len(self.order)
 		self.paletteView.frame.resize(self.width, newHeight + 10)
 
-	def draw( self, view ):
+	@objc.python_method
+	def draw(self, view):
 		keyDiameter = 10
 		height = view.bounds().size.height
 		for num, i in enumerate(self.order, 1):
@@ -73,7 +78,8 @@ def draw( self, view ):
 				self.colours[i].set()
 			NSBezierPath.bezierPathWithOvalInRect_(((0, height - (num * self.elementHeight)), (keyDiameter, keyDiameter))).fill()
 
-	def getKeyFile( self ):
+	@objc.python_method
+	def getKeyFile(self):
 		keyFile = None
 		try:
 			thisDirPath = os.path.dirname(self.windowController().document().font.filepath)
@@ -85,8 +91,8 @@ def getKeyFile( self ):
 		if keyFile is None:
 			keyFile = os.path.expanduser('~/Library/Application Support/Glyphs/Info/labelkey.txt')
 		return keyFile
-
-	def mapKeys( self, keyFile ):
+	@objc.python_method
+	def mapKeys(self, keyFile):
 		order = []
 		colourLabels = {}
 		if os.path.exists(keyFile):
@@ -107,6 +113,7 @@ def setWindowController_(self, windowController):
 			import traceback
 			self.logError(traceback.format_exc())
 
+	@objc.python_method
 	def __file__(self):
 		"""Please leave this method unchanged"""
 		return __file__