Incompatibility with pyvisa-sim since release 1.11

[Arkh42]

I work on a project built on top of PyVISA (see rtestbench).
For automated testing, I use pyvisa-sim >= 0.3.
My automated tests suddenly started to fail (requirements: pyvisa >= 1.9), until I limited the version of pyvisa to <= 1.10.1.

I saw in your documentation on PyPI:

1.11 (16-09-2020)

PyVISA 1.11 introduces a small backward incompatibility in the handling of the arguments to handlers for VISA events.

However, I have no clue on how to fix this issue.

To Reproduce

Steps to reproduce the behavior:

import pyvisa as visa
manager = visa.ResourceManager(visa_library='@sim')

Output of pyvisa-info

---

/opt/hostedtoolcache/Python/3.8.5/x64/lib/python3.8/site-packages/pyvisa/highlevel.py:3015: in new
visa_library = open_visa_library(visa_library)
/opt/hostedtoolcache/Python/3.8.5/x64/lib/python3.8/site-packages/pyvisa/highlevel.py:2929: in open_visa_library
return cls(argument)

---

cls = <class 'pyvisa-sim.highlevel.SimVisaLibrary'>, library_path = ''

def __new__(
    cls: Type[T], library_path: Union[str, LibraryPath] = ""
) -> "VisaLibraryBase":
    """Create a new VISA library from the specified path.

    If a library was already created using the same path and class this
    library object is returned instead.

    Parameters
    ----------
    library_path : str | LibraryPath
        Path to the VISA library to use in the backend.

    Raises
    ------
    OSError
        Raised if the VISA library object could not be created.

    """
    if library_path == "":
        errs = []
        for path in cls.get_library_paths():
            try:
                return cls(path)
            except OSError as e:
                logger.debug("Could not open VISA library %s: %s", path, str(e))
                errs.append(str(e))
            except Exception as e:
                errs.append(str(e))
        else:
            raise OSError("Could not open VISA library:\n" + "\n".join(errs))

E OSError: Could not open VISA library:

/opt/hostedtoolcache/Python/3.8.5/x64/lib/python3.8/site-packages/pyvisa/highlevel.py:175: OSError

[MatthieuDartiailh]

The issue has been reported under Pyvisa-sim and is actually something I overlooked because I do not actively maintain pyvisa-sim (I am not a fan of the chosen approach and my time for open source is finite). I will do my best to release a new release either tomorrow or next week depending on how much time I can find.

[MatthieuDartiailh]

Please check pyvisa/pyvisa-sim#53

[MatthieuDartiailh]

The latest release of PyVISA-sim 0.4.0 supports PyVISA >= 1.11