usbtmc error on Raspberry Pi 3

[kaschneider]

I am trying to install the usbtmc package on a Raspberry Pi 3. I extracted the package and used sudo python3 setup.py install in the terminal window to install, and it was successful. Now I am trying to run this bit of code:

import usbtmc
instr = usbtmc.Instrument(0x2a8d, 0x5c18)
print(instr.ask("*IDN?"))

I am receiving the error:

AttributeError: 'Endpoint' object has no attribute 'clear_halt'

So I think something might be wrong in the way I installed it? Any help is appreciated.

[alexforencich]

What version of pyusb do you have installed?

[kaschneider]

Here are the links from where I downloaded pyusb and libusb:
http://sourceforge.net/projects/pyusb/
http://www.libusb.org/wiki/libusb-win32
So I have pyusb 1.0.0

[alexforencich]

Are you sure that you have 1.0.0 installed? What's the output of pip show pyusb?

[ainachara]

I have the same problem only in W7, not in Linux.
pyusb version 1.0.2