On Thu, Jan 10, 2013 at 3:43 PM, Cybergibbons <cybergibb...@gmail.com> wrote: > I have been trying to use PyUSB for a few hours using Python 3.3 under > Windows 7 and was getting issues with "Cannot find backend". > ctypes.util.find_library was failing to find the DLL, yet if I stepped > through the code, it would find the DLL. Even once this was resolved, a > problem occurred in the init code.
Seem to be okay for me. I just installed Python 3.3 and pywin32 and I can find the device with Python 3.3. Which backend are you using? I am trying out the libusb-1.0 backend and it seems to work. The device is ST-Link V2 and it uses WinUSB driver. Python 3.3.0 (v3.3.0:bd8afb90ebf2, Sep 29 2012, 10:55:48) [MSC v.1600 32 bit (In tel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> import usb.core >>> import usb.util >>> dev = usb.core.find(idVendor=0x0483, idProduct=0x3748) >>> dev <usb.core.Device object at 0x00CF9E90> >>> -- Xiaofan ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnnow-d2d _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
