Using abstract classes with ui.View

[Phuket2]

I am just doing some testing with Abstract classes. I would like to start using them to help with the design of my classes and also help with a consistent approach. From what I read the code below should not work, it should fail as an abstract method in the child class is not defined. But, I think I am having problems because I am inheriting from ui.View. Is there something special about ui.View that does not allow combining it with abstract classes?
Any help appreciated.

import ui
from abc import ABCMeta, abstractmethod

#template custom class
class base_std(ui.View):
	__metaclass__ = ABCMeta
	def __init__(self):
		pass
		
	def ui_elements_create():
		pass
	
	@abstractmethod
	def style(self):
		pass
	
	def layout(self):
		pass
		
class my_class(base_std):
	def __init__(self):
		pass
		
	#def style(self):
		#pass

if __name__ == '__main__':
	cls= my_class()
	cls.present('sheet')