def thread_exception(self, raised_exception):
		""" Callback for handling exception, that are raised inside :meth:`.WThreadTask.thread_started`

		:param raised_exception: raised exception
		:return: None
		"""
		print('Thread execution was stopped by the exception. Exception: %s' % str(raised_exception))
		print('Traceback:')
		print(traceback.format_exc())