def time(self): """<DOC> Return current time Example: >>> print 'The time is %s' % self.time() Returns: A timestamp of the current time </DOC>""" # This function is set by item.prepare() raise exceptions.openexp_error( \ u"item.time(): This function should be set by the canvas backend.")
def sleep(self, ms): """<DOC> Sleep for a specified duration Example: >>> self.sleep(1000) # Sleep one second Arguments: ms -- a duration in milliseconds </DOC>""" # This function is set by item.prepare() raise exceptions.openexp_error( \ u'item.sleep(): This function should be set by the canvas backend.')