vmihailenco/cached_property.py

## cached_property.py
class cached_property(object):
    def __init__(self, func):
        self.func = func

    def __get__(self, obj, type=None):
        if obj is None:
            return self

        obj.__dict__[self.func.__name__] = value = self.func(obj)
        return value
	class cached_property(object):
	def __init__(self, func):
	self.func = func

	def __get__(self, obj, type=None):
	if obj is None:
	return self

	obj.__dict__[self.func.__name__] = value = self.func(obj)
	return value