python - Function to define the @property for multiple attributes -

i trying make function takes in variable number of attributes class instance , redefines them @property, giving attribute getter , setter.

i want achieve this:

@property def x(self):     return self._x  @x.setter def x(self, value):     self._x = value  @property def dx(self):     return self._dx  @dx.setter def dx(self, value):     self._dx = value  @property def dy(self):     return self._dy  @dy.setter def dy(self, value):     self._dy = value 

by doing this:

decorate_these_attributes(self.x, self.dx, self.dy) 

here have far:

def decorate_these_attributes(self, *args):      def attr_set(attr, val):         attr = val      attr in args:         attr_get = lambda: attr         attr = property(attr_get, attr_set) 

as of now, when call function, doesn't anything. ideas of doing wrong?

you use class decorator or metaclass things this:

def apply_property(cls):     def make_getter(name):         def getter(self):             return getattr(self, name)         return getter      def make_setter(name):         def setter(self, val):             setattr(self, name, val)         return setter      f in cls.fields:         getter = make_getter('_' + f)         setter = make_setter('_' + f)         setattr(cls, f, property(getter, setter))     return cls   @apply_property class point:     fields = ['x', 'y', 'z'] 

i'm assuming have more complex example in mind. if that's not case, think can use plain attributes, no need properties. , in cases need different behavior different properties, try searching "python descriptor".