PyVISA error, version support

[Robin Finkers]

Hello,

I would like to use python-IVI, but the only thing I get are error messages.

I tried different versions of PyVISA and python-ivi.

At the moment i'm running the latest versions: PyVISA 1.9.1 and python-ivi v0.14.9.

The code i'm trying:

import ivi

instr=ivi.agilent.agilent34401A("GPIB0::22::INSTR")

Console:

Exception ignored in: <function Resource.__del__ at 0x0000000005C53C80>

Traceback (most recent call last):

  File "C:\Python37\lib\site-packages\pyvisa\resources\resource.py", line 108, in __del__

  File "C:\Python37\lib\site-packages\pyvisa\resources\resource.py", line 243, in close

  File "C:\Python37\lib\site-packages\pyvisa\resources\resource.py", line 235, in before_close

  File "C:\Python37\lib\site-packages\pyvisa\resources\resource.py", line 252, in __switch_events_off

  File "C:\Python37\lib\site-packages\pyvisa\resources\resource.py", line 309, in disable_event

  File "C:\Python37\lib\site-packages\pyvisa\ctwrapper\functions.py", line 410, in disable_event

  File "C:\Python37\lib\site-packages\pyvisa\ctwrapper\highlevel.py", line 188, in _return_handler

pyvisa.errors.VisaIOError: VI_ERROR_INV_OBJECT (-1073807346): The given session or object reference is invalid.

Am i doing something wrong or is it something with version compatibility?

Thanks,

Robin

[Alex Forencich]

Try using python-ivi from git.
--
Alex Forencich

[Robin Finkers]

I have installed that one.

I think it is an other problem.

When i type the code in the terminal it does work, but not as script?

Op dinsdag 25 september 2018 18:20:15 UTC+2 schreef Alex Forencich:

[Drakon]

I have the same problem. Any solution?