[Python-Dev] class dict of subtyped types

[Thomas Heller]

C:\>python
Python 2.2b1+ (#25, Oct 19 2001, 14:30:05) [MSC 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> class INT(int): pass
...
>>> INT.__dict__
<dict-proxy object at 0x00769680>
>>> INT.__dict__.update
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
AttributeError: 'dict-proxy' object has no attribute 'update'
>>> dir(INT.__dict__)
['__class__', '__contains__', '__delattr__', '__getattribute__', '__getitem__', '__hash__'
, '__init__', '__iter__', '__len__', '__new__', '__reduce__', '__repr__', '__setattr__', '
__str__', 'copy', 'get', 'has_key', 'items', 'keys', 'values']
>>>

Other dict attributes are missing as well in the dict-proxy.
Is this intentional?

Thomas