[Custom Property] #python #decorators

property.py

class myProperty:
	def __init__(self, get_func=None, set_func=None, del_func=None):
		self.get_func = get_func
		self.set_func = set_func
		self.del_func = del_func
	
	def __get__(self, instance, cls):
		if instance is None:
			return self
		if self.get_func is None:
			raise AttributeError('can\'t get the attribute')
		return self.get_func(instance)

	def __set__(self, instance, value):
		if self.set_func is None:
			raise AttributeError('can\'t set the attribute')
		return self.set_func(instance, value)

	def __del__(self, instance):
		if self.del_func is None:
			raise AttributeError('can\'t delete the attribute')
		return self.del_func(instance)

	def getter(self, get_func):
		return self.__class__(get_func, self.set_func, self.del_func)

	def setter(self, set_func):
		return self.__class__(self.get_func, set_func, self.del_func)

	def deletter(self, del_func):
		return self.__class__(self.get_func, self.set_func, del_func)