'Can't set attribute' with new-style properties in Python

Question

I'm trying to use new-style properties declaration:

class C(object):     def __init__(self):         self._x = 0      @property     def x(self):         print 'getting'         return self._x      @x.setter     def set_x(self, value):         print 'setting'         self._x = value  if __name__ == '__main__':     c = C()     print c.x     c.x = 10     print c.x 

and see the following in console:

pydev debugger: starting getting 0 File "\test.py", line 55, in <module> c.x = 10 AttributeError: can't set attribute 

what am I doing wrong? P.S.: Old-style declaration works fine.

Answer 1

The documentation says the following about using decorator form of property:

Be sure to give the additional functions the same name as the original property (x in this case.)

I have no idea why this is since if you use property as function to return an attribute the methods can be called whatever you like.

So you need to change your code to the following:

@x.setter def x(self, value):     'setting'     self._x = value