How to install PyCheMPS2 with new python3 versions that no longer support "python setup.py install"

[tsevasa]

I followed steps 1.1-1.5 of the installation guide without any problems, however building PyCheMPS2 does not work for me. Running python setup.py install only throws the following warning and otherwise fails silently:

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        Please avoid running ``setup.py`` directly.
        Instead, use pypa/build, pypa/installer, pypa/build or
        other standards-based tools.

        By 2025-Oct-31, you need to update your project and remove deprecated calls
        or your builds will no longer be supported

        See https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html for details.
 ********************************************************************************

This seems to be because I am using python 3.10 instead of older python versions. I tested the installation with python 2.7 and there wasn't the same issue. Can this be fixed for newer python versions somehow?