Una simple clase python para administrar acciones.

_action.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-

import warnings

class Action(object):
	"""Una acción"""
	def __init__(self):
		super(Action, self).__init__()
		self.to_do = None
		self.errors = list()
		self.warnings = list()

	def __call__(self, *args, **kwargs):
		if not self.to_do:
			warnings.warn("No se ha registrado una acción")
			return False
		self.to_do(self, *args, **kwargs)
		return True

	def register(self, function):
		self.to_do = function
		return function

	def is_success(self):
		if len(self.errors):
			return False
		else:
			return True

if __name__ == '__main__':
	action = Action()
	
	@action.register
	def stuff(self, value, name):
		print("Action is called")
		print("Action is doing thing...")
		print("value:", value)
		print("name:", name)
		print("Action was called.")
		self.errors.append("Error interno")
		self.warnings.append("No se ha pasado parámetros")

	action(56, "lel")