Fix python library on Windows (#523)
Fix python library on Windows (#523)

On Windows, setAutoDetachKernelDriver is not supported (http://libusb.sourceforge.net/api-1.0/group__libusb__dev.html#ga5e0cc1d666097e915748593effdc634a) and causes libusb to get stuck (simple try-catch is not working). This prevents any issues when running both at native windows python and cygwined python...
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