error with wxPython2.8-win32-unicode-2.8.7.1-py25.exe

[Emmanuel]

I recently upgraded wxpython (and python) on XP using wxPython2.8-
win32-unicode-2.8.7.1-py25.exe

Now when I run

from wxPython.wx import *

It crashes :

-> import _wx
 ...

from _misc import *

...

--> 456 wxDateTime_GetNumberOfDaysinYear =
wx._misc.DateTime_GetNumberOfDaysinYear

...

AtributeError: 'module' object has no atribute
'DateTime_GetNumberOfDaysinYear'

Is it a known problem or is there something wrong only on my side?