Python post osx notification

Using python I am wanting to post a message to the OSX Notification Center. What library do I need to use? should i write a program in objective-c and then call that program from python?

---

update

How do I access the features of notification center for 10.9 such as the buttons and the text field?

All the other answers here require third party libraries; this one doesn't require anything. It just uses an apple script to create the notification:

import os

def notify(title, text):
    os.system("""
              osascript -e 'display notification "{}" with title "{}"'
              """.format(text, title))

notify("Title", "Heres an alert")

Note that this example does not escape quotes, double quotes, or other special characters, so these characters will not work correctly in the text or title of the notification.

Update: This should work with any strings, no need to escape anything. It works by passing the raw strings as args to the apple script instead of trying to embed them in the text of the apple script program.

import subprocess

CMD = '''
on run argv
  display notification (item 2 of argv) with title (item 1 of argv)
end run
'''

def notify(title, text):
  subprocess.call(['osascript', '-e', CMD, title, text])

# Example uses:
notify("Title", "Heres an alert")
notify(r'Weird\/|"!@#$%^&*()\ntitle', r'!@#$%^&*()"')

You should install terminal-notifier first with Ruby for example:

$ [sudo] gem install terminal-notifier

And then you can use this code:

import os

# The notifier function
def notify(title, subtitle, message):
    t = '-title {!r}'.format(title)
    s = '-subtitle {!r}'.format(subtitle)
    m = '-message {!r}'.format(message)
    os.system('terminal-notifier {}'.format(' '.join([m, t, s])))

# Calling the function
notify(title    = 'A Real Notification',
       subtitle = 'with python',
       message  = 'Hello, this is me, notifying you!')

And there you go:

copy from: https://gist.github.com/baliw/4020619

following works for me.

import Foundation
import objc
import AppKit
import sys
 
NSUserNotification = objc.lookUpClass('NSUserNotification')
NSUserNotificationCenter = objc.lookUpClass('NSUserNotificationCenter')
 
def notify(title, subtitle, info_text, delay=0, sound=False, userInfo={}):
	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)
 
 
notify("Test message", "Subtitle", "This message should appear instantly, with a sound", sound=True)
sys.stdout.write("Notification sent...\n")

For a Python only implementation, I've modified the code that someone posted as part of another related question, and is working well for me:

import mmap, os, re, sys
from PyObjCTools import AppHelper
import Foundation
import objc
import AppKit
import time
from threading import Timer

from datetime import datetime, date

# objc.setVerbose(1)

class MountainLionNotification(Foundation.NSObject):
	# Based on http://stackoverflow.com/questions/12202983/working-with-mountain-lions-notification-center-using-pyobjc

	def init(self):
		self = super(MountainLionNotification, self).init()
		if self is None: return None

		# Get objc references to the classes we need.
		self.NSUserNotification = objc.lookUpClass('NSUserNotification')
		self.NSUserNotificationCenter = objc.lookUpClass('NSUserNotificationCenter')

		return self
    
	def clearNotifications(self):
		"""Clear any displayed alerts we have posted. Requires Mavericks."""
    	
		NSUserNotificationCenter = objc.lookUpClass('NSUserNotificationCenter')
		NSUserNotificationCenter.defaultUserNotificationCenter().removeAllDeliveredNotifications()

	def notify(self, title, subtitle, text, url):
		"""Create a user notification and display it."""

		notification = self.NSUserNotification.alloc().init()
		notification.setTitle_(str(title))
		notification.setSubtitle_(str(subtitle))
		notification.setInformativeText_(str(text))
		notification.setSoundName_("NSUserNotificationDefaultSoundName")
		notification.setHasActionButton_(True)
		notification.setActionButtonTitle_("View")
		notification.setUserInfo_({"action":"open_url", "value":url})

		self.NSUserNotificationCenter.defaultUserNotificationCenter().setDelegate_(self)
		self.NSUserNotificationCenter.defaultUserNotificationCenter().scheduleNotification_(notification)

		# Note that the notification center saves a *copy* of our object.
		return notification

	# We'll get this if the user clicked on the notification.
	def userNotificationCenter_didActivateNotification_(self, center, notification):
		"""Handler a user clicking on one of our posted notifications."""

		userInfo = notification.userInfo()
		if userInfo["action"] == "open_url":
			import subprocess
			# Open the log file with TextEdit.
			subprocess.Popen(['open', "-e", userInfo["value"]])
            

You could likely clean up the import statements to remove some unneeded imports.

Another choice is a python lib named pync, maybe it's a better choice. pync is a simple Python wrapper around the terminal-notifier command-line tool, which allows you to send User Notifications to the Notification Center on Mac OS X 10.10, or higher.

Installation:

> pip install pync

Examples:

from pync import Notifier

Notifier.notify('Hello World')
Notifier.notify('Hello World', title='Python')
Notifier.notify('Hello World', group=os.getpid())
Notifier.notify('Hello World', activate='com.apple.Safari')
Notifier.notify('Hello World', open='http://github.com/')
Notifier.notify('Hello World', execute='say "OMG"')

Notifier.remove(os.getpid())

Notifier.list(os.getpid())

Try ntfy if you also want the script to be able to communicate with you over other devices.

Installation

[sudo] pip install ntfy 

where pip refers to the Package Installer of the target Python version

For Python3 installation:

[sudo] pip3 install ntfy    

Usage

I use this simple function for notifications regarding command executions and download completions:

def notification(title, message):
    """Notifies the logged in user about the download completion."""

    import os
    cmd = 'ntfy -t {0} send {1}'.format(title, message)
    os.system(cmd)

notification("Download Complete", "Mr.RobotS01E05.mkv saved at /path")

Advantages of ntfy

1. This tool is quite handy as it logs all the notifications directly to the Notification Center rather than referring to other third-party application.

2. Multiple Backend supports: This tool can connect to you over any device through services such as PushBullet, SimplePush, Slack, Telegram etc. Check the entire list of supported backend services here.

Here is a way (You need the Foundation module):

from Foundation import NSUserNotification
from Foundation import NSUserNotificationCenter
from Foundation import NSUserNotificationDefaultSoundName


class Notification():
    def notify(self, _title, _message, _sound = False):
        self._title = _title
        self._message = _message
        self._sound = _sound

        self.notification = NSUserNotification.alloc().init()
        self.notification.setTitle_(self._title)
        self.notification.setInformativeText_(self._message)
        if self._sound == True:
            self.notification.setSoundName_(NSUserNotificationDefaultSoundName)

        center = NSUserNotificationCenter.defaultUserNotificationCenter()
        center.deliverNotification_(self.notification)

N = Notification()
N.notify(_title="SOME", _message="Something", _sound=True)

This works only for MAC. Hope you enjoy!