OASYS does not start anymore (December 2023)

[lucarebuffi]

In all supported OSs, on December 20th 2023 morning, OASYS suddenly failed to start. In Linux and Windows, an error message was visible with the last two lines as follow:

if MAX_VERSION[dist.project_name] is None: return True

KeyError: 'SciPy'

This is due to a modification made to/by the Python Package Index, where all the OASYS libraries are stored.
OASYS must be reinstalled:

Linux: open a terminal, type ~/miniconda3/bin/python -m pip install oasys1 –upgrade

Windows: open a Miniconda3 prompt (Start Menu->Anaconda3->Anaconda Prompt (miniconda3)), type python -m pip install oasys1 –upgrade

Mac: download the app from our website and replace your current one
or
open a terminal and type: /Applications/Oasys1.3.app/Contents/MacOS/PythonApp -m pip install oasys1 --upgrade