text: """
  Selects the appropreate core for the environment you are running in
  """
  Core = None
  
  # initialize the ui system for the environment we are running in
  try:
  	from maya.core import MayaCore as Core
  except:
  	pass
  
  try:
  	from studiomax.core import StudioMaxCore as Core
  except:
  	pass
  
  try:
  	from motionbuilder.core import MotionBuilderCore as Core
  except:
  	pass
  
  if Core is None:
  	from external import Core
  
  Core = Core.instance()
  