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pyvisa / pyvisa-py

A pure python PyVISA backend
https://pyvisa-py.readthedocs.io
MIT License
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How to disable discovery of VXI-11, HiSLIP and VICP devices #372

Closed canol closed 1 year ago

canol commented 1 year ago

Hello, we have been using PyVISA-Py backend for a long time. Relatively recently, we noticed that it gives these warnings when we call ResourceManager.list_resources() method:

C:\my_project\venv\lib\site-packages\pyvisa_py\tcpip.py:404: UserWarning: TCPIP:instr resource discovery is limited to the default interface.Install psutil: pip install psutil if you want to scan all interfaces.
  warnings.warn(
C:\my_project\venv\lib\site-packages\pyvisa_py\tcpip.py:121: UserWarning: TCPIP::hislip resource discovery requires the zeroconf package to be installed... try 'pip install zeroconf'
  warnings.warn(

We can install these dependencies as well, but we don't have any issues finding our current set of devices, and hence don't want to introduce any behavior change in device discovery. Is there a way to not get these warnings other than installing these additional dependencies?

MatthieuDartiailh commented 1 year ago

Like any other warning you can filter them out. Since TCPIP discovery is not always desirable we could consider adding a way to disable it but it is not part of the standard VISA interface.

canol commented 1 year ago

Okay, thank you very much.