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visa.ResourceManager() got function 'viOpen' not found in Windows
See original GitHub issueNow we use pyvisa to load the visa library in Windows.
But when we call visa.ResourceManager() or visa.ResourceManager(r'C:\Windows\System32\visa32.dll'), it throws exception of “AttributeError: function ‘viOpen’ not found”.
Issue Analytics
- State:
- Created 5 years ago
- Comments:25 (13 by maintainers)
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That looks like an issue related to the new dll mechanism access on Python 3.8. However I have a windows system running 3.8 and Keysight with no issue. It may still be an installation issue though. If you do not want to re-install you can try to use
os.add_dll_directoryto add the Keyisght directory found under Program files.Happy I could help. I will try to keep in mind that I could clarify the docs.