tree drop target: can't work this out

[Jack Andrews]

with this source:
----
$ cat t.py
import wx

class TC(wx.PyDropTarget):
    def __init__(self):
        wx.PyDropTarget.__init__(self)
class TRC(wx.TreeCtrl,TC):
    def __init__(self,pa,id,sy):
        TC.__init__(self)
        wx.TreeCtrl.__init__(self,pa,id,sy)

TRC(None,None,None)
----

i get this error:
$ python t.py
Traceback (most recent call last):
  File "t.py", line 11, in ?
    TRC(None,None,None)
  File "t.py", line 8, in __init__
    TC.__init__(self)
  File "t.py", line 5, in __init__
    wx.PyDropTarget.__init__(self)
  File "C:\Python24\Lib\site-packages\wx-2.6-msw-unicode\wx\_misc.py", line 5502
, in __init__
    self._setCallbackInfo(self, DropTarget)
  File "C:\Python24\Lib\site-packages\wx-2.6-msw-unicode\wx\_controls.py", line
5337, in _setCallbackInfo
    return _controls_.TreeCtrl__setCallbackInfo(*args, **kwargs)
TypeError: argument number 1: a 'wxPyTreeCtrl *' is expected, 'PySwigObject(_p_w
xPyDropTarget)' is received


versions:
----
$ python
Python 2.4.3 (#69, Mar 29 2006, 17:35:34) [MSC v.1310 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import wx
>>> wx.__version__
'2.6.3.3'

ta,


jack