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

[s0suk3 at gmail.com]

On Apr 19, 6:20 am, hellt <Dodin.Ro... at gmail.com> wrote:
> HI all, i found winreg module fromhttp://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.

The problem is not in your code, but in the module. The EnumValue()
and EnumKey() functions in the _winreg module raise WindowsError when
there are no more keys or values to retrieve. So, go inside the module
and modify that line to something like:

# There should be a for or a while loop around here
try:
    name = _winreg.EnumValue(key, index)
except EnvironmentError: