U3DXT python issue

Hello I'm getting the following error when using U3DXT plugin for my in-app purchases on iOS. I have installed the latest version of python but couldn't get rid of the following error when I build the project

 Win32Exception: ApplicationName='python', CommandLine='Assets/U3DXT/Editor/post_process.pyc "/Users/bass/Documents/Programming/Game-Dev/unity/dash/Temp/ios" "/Users/bass/Documents/Programming/Game-Dev/unity/dash/Assets/U3DXT/Editor/lib" "CoreGraphics~|~QuartzCore~|~StoreKit~|~AssetsLibrary~|~MobileCoreServices~|~AudioToolbox~|~Security~|~Accounts~|~MessageUI~|~Social~|~Twitter~|~GameKit~|~AVFoundation~|~CoreImage~|~OpenGLES~|~CoreVideo~|~MediaPlayer~|~AddressBook~|~AddressBookUI~|~EventKit~|~EventKitUI~|~CoreLocation~|~GameController~|~MultipeerConnectivity~|~SpriteKit~|~MapKit~|~CoreBluetooth"', CurrentDirectory=''
 System.Diagnostics.Process.Start_noshell (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process)
 System.Diagnostics.Process.Start_common (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process)
 System.Diagnostics.Process.Start ()

I'm running on a Mac OSX, please let me know how i can solve this