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pyvisa / pyvisa-py

A pure python PyVISA backend
https://pyvisa-py.readthedocs.io
MIT License
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pyvisa-info does not start #229

Closed bilderbuchi closed 4 years ago

bilderbuchi commented 4 years ago

Running pyvisa-info in a powershell terminal on Windows fails with

Fatal error in launcher: Unable to create process using '"d:\bld\pyvisa_1584488223356\_h_env\python.exe"  "C:\Users\buchner\AppData\Local\Continuum\miniconda3\Scripts\pyvisa-info.exe" ': The system cannot find the file specified.

I have confirmed that the pyvisa-info.exe is present where the error message says, but I don't have a Python installation at this D: path.

It seems to me that somehow during packaging a machine-local path for Python slipped into the configuration (I don't even have a D: drive). I could not find out how the pyvisa-info exe is created, it does not seem to use a setup.py console_script entrypoint.

Curiously, this happens with both a pyvisa-py pip installation and an installation from conda-forge. Pyvisa itself is on 1.10.1 from conda-forge.

To Reproduce

Steps to reproduce the behavior:

  1. Install pyvisa-py on Windows with an Anaconda Python installation, either 0.4.0 via pip, or 0.3.1 from conda-forge (tried with both)
  2. In a terminal/powershell, run pyvisa-info
  3. Instead of diagnostic output, the above error appears
bilderbuchi commented 4 years ago

shoot, I just realised that this does not come from pyvisa-py, but pyvisa itself. Sorry, can you transfer the issue, please? I also realised this affects pyvisa-shell, too, with the same error.

bilderbuchi commented 4 years ago

OK, I just installed pyvisa from pip instead, and there the console tools work, so this seems to be an issue of the conda-forge package. :-/

MatthieuDartiailh commented 4 years ago

Thanks. I will have a look at the conda package. Those script are created by setuptools and it requires some tweaking for conda to deal with them properly. I will try to fix the issue this week.

MatthieuDartiailh commented 4 years ago

I opened a PR to fix the recipe. It just needs a review to get merged.

bilderbuchi commented 4 years ago

Thanks for the quick fix, confirmed fixed.