It is probably 0.4 version. Try "value" member instead of bConfigurationValue.

2010/7/30 Henning Spille <h.spi...@googlemail.com>:
> Hi,
>
> ist there any way to check which pyusb Version is installed in the system?
>
> I'm having a "NoneType' object has no attribute 'bConfigurationValue'" error 
> message on a Debian System and
> i'm not sure if it may be the 1.0 or the 0.x Version of pyusb installed.
>
> Regards,
>
> Henning
>
>
>
>
>
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-- 
Best Regards,
Wander Lairson Costa

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