I am trying to connect to the Mountain Lion notification center via python. I've installed pyobjc and am following the instructions here and here. Also see: Working with Mountain Lion's Notification Center using PyObjC

Here's my code:

import Foundation, objc
import AppKit
import sysNSUserNotification = objc.lookUpClass('NSUserNotification')
NSUserNotificationCenter = objc.lookUpClass('NSUserNotificationCenter')def notify(title, subtitle, info_text, delay=0, sound=False, userInfo={}):""" Python method to show a desktop notification on Mountain Lion. Where:title: Title of notificationsubtitle: Subtitle of notificationinfo_text: Informative text of notificationdelay: Delay (in seconds) before showing the notificationsound: Play the default notification sounduserInfo: a dictionary that can be used to handle clicks in yourapp's applicationDidFinishLaunching:aNotification method"""notification = NSUserNotification.alloc().init()notification.setTitle_(title)notification.setSubtitle_(subtitle)notification.setInformativeText_(info_text)notification.setUserInfo_(userInfo)if sound:notification.setSoundName_("NSUserNotificationDefaultSoundName")notification.setDeliveryDate_(Foundation.NSDate.dateWithTimeInterval_sinceDate_(delay, Foundation.NSDate.date()))NSUserNotificationCenter.defaultUserNotificationCenter().scheduleNotification_(notification)

When I call the notify function with arguments I get an attribute error:

AttributeError: 'NoneType' object has no attribute 'scheduleNotification_'

I don't understand why NSUserNotificationCenter.defaultUserNotificationCenter() is returning a NoneType object. I've not been able to query anything on this matter on the internet or SO.

So, this works fine using Ned's advice of using default python. It also worked when I installed pyobjc on the 32-bit enthought distribution. It seems to me that pyobjc works only on 32 bit python distributions (I cannot confirm this, but so far this seems to be the case).

(Note: When I posted the question I had installed pyobjc on the 64 bit enthought distribution).