Error: PyVISA is required for loading VISA instruments

[Schreiberling]

Hi,

I want to use your library to control and access a Yokogawa optical spectrum analyzer. However, when I try to open the device using open_visa (ik.yokogawa.Yokogawa6370.open_visa('TCPIP0:192.168.0.35')) I get following error:

Traceback (most recent call last):
  File "C:\....\lib\site-packages\instruments\abstract_instruments\instrument.py", line 605, in open_visa
    raise ImportError("PyVISA is required for loading VISA ")
ImportError: PyVISA is required for loading VISA instruments.

PyVISA is installed and when I use pyvisa directly according to their example everything works fine and I could also start a sweep.

import pyvisa
rm = pyvisa.ResourceManager()
rm.list_resources()
my_instrument = rm.open_resource('TCPIP0:192.168.0.35')

I found out that in the mentioned file instruments.py 'import visa' is made instead of 'import pyvisa'. Could this be a problem? What else could it be?

I hope you can help me. Thank you!

EDIT: I just recognized that the file instrument.py from the basic intrument class which I have on my copmuter is quite different comparedd to the code here. Shouldn't those be the same? How can this be? I have installed the latest version.

[scasagrande]

pip install -U instrumentkit --pre or pip install instrumentkit==1.0.0b1