winreg module, need help to understand why i'm getting exception

[hellt]

HI all, i found winreg module from http://www.rutherfurd.net/python/winreg/index.html
very useful and simple, instead _winreg.

But i have a problem with this module, in its iterable part.

look at the following code

key = Key(HKLM,r"SYSTEM\CurrentControlSet\Services\Tcpip\Enum")
for i in key.values:
    print i.value

and that is the exception

Traceback (most recent call last):
 File "D:\.Projects\python\temp.py", line 21, in <module>
   for i in key.values:
 File "C:\Python25\Lib\site-packages\winreg.py", line 451, in next
   return self.values[self.index - 1]
 File "C:\Python25\Lib\site-packages\winreg.py", line 289, in
__getitem__
   name = _winreg.EnumValue(self.hkey, key)[0]
WindowsError: [Error 259] No more data is available


so there is some problem with iterate, i think
i am still a beginner, so i cant understand why this appears, and what
should i fix.

if anyone have some time to look closer to this module, i will
appreciate this very much.

thanks.