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I'm trying to have my Python application interface with an NFC device via USB. The best option seems to be PyUSB, but I can't get it to connect to the libusb backend. I keep getting
ValueError: No backend available
I've looked at the stack trace, and found that usb/backend/libusb10.py (which is part of pyusb) is trying to load libusb-1.0.dll to use as the backend, but it can't find it. It's not that it's not in my path, it's not on my computer at all!
I have installed libusb-win32, but the resulting directory only seems to include libusb0.dll. Where is libusb-1.0.dll???!
I would love to know either where to get that dll, or even a different suggestion to get PyUSB to work on Windows 7.
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Requirements and platform support. PyUSB is primarily developed and tested on Linux and Windows, but it should also work fine on any platform running Python >= 3.7, ctypes and at least one of the built-in backends. PyUSB supports libusb 1.0, libusb 0.1 and OpenUSB.
Click Restart. Select 7. OK, the win10 disable driver signature enforcement in temporary. Now we can download the libusb in this link: https://sourceforge.net/projects/libusb-win32/files/libusb-win32-releases/1.2.6.0/ Page 8 The filename is libusb-win32-bin-1.2.
Download and install libusb-win32-devel-filter-1.2.6.0.exe. It should work.
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