Sublime Text 2's plugin that looks up a word beside a caret or a selected text in Dictionary.app.

LookUpInDictionary.py

# -*- coding: utf-8; -*-

#
# Author :: Masayuki Higashino
#
# This plugin looks up a word beside a caret or a selected text in
# Dictionary.app without changing activeness of Sublime Text 2.app's window.
#
# In order to use this plugin, Add a keymap such as a follow into user's key bindings.
# { "keys": ["super+d"], "command": "look_up_in_dictionary" }

import sublime, sublime_plugin, os, urllib
class LookUpInDictionaryCommand(sublime_plugin.TextCommand):
	def run(self, edit):
		region = self.view.sel()[0]
		if region.empty():
		 	s = self.view.substr(self.view.word(region.a))
		else:
			s = self.view.substr(region)
		os.system('open -g dict://' + urllib.quote(s.encode('utf-8')) + ' &')
		os.system('say "' + s.encode('utf-8') + '" &')