property names

>>> class C(object):
...   def __init__(self):
...     self._x = None
...   @property
...   def x(self):
...     return self._x
...   @x.setter
...   def set_x(self, value):
...     self._x = value
...   @x.deleter
...   def del_x(self):
...     del self._x
...
>>> c = C()
>>> c.x
>>> c.x = 5
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: can't set attribute
>>> c.set_x = 5
>>> c.x
5
>>> del c.x
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: can't delete attribute
>>> del c.del_x
>>> c.x
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 6, in x
AttributeError: 'C' object has no attribute '_x'
>>>

What I miss is why we have a setter only property and a getter only property instead of connecting all the methods to the first property.

In [20]: C.x.fget?
Type:       function
String Form:<function x at 0x31b06e0>
File:       /home/naufraghi/Documents/comelz/caligola3d.git/src/<ipython-input-8-d2703c8694c3>
Definition: C.x.fget(self)
Docstring:  <no docstring>

In [21]: C.x.fset?
Type:       NoneType
String Form:None
Docstring:  <no docstring>

In [22]: C.set_x.fset?
Type:       function
String Form:<function set_x at 0x31b0668>
File:       /home/naufraghi/Documents/comelz/caligola3d.git/src/<ipython-input-8-d2703c8694c3>
Definition: C.set_x.fset(self, value)
Docstring:  <no docstring>