You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

deltascf-aims
0.6.1

This version was deleted from PyPI around 2023-11-28. Installing fails with:
$ pip3 install deltascf-aims==0.6.1 ERROR: Could not find a version that satisfies the requirement deltascf-aims==0.6.1
View other deleted versions of deltascf-aims

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2023-11-27/ \ deltascf-aims==0.6.1
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Or, download files manually

And install manually via pip:
deltascf_aims-0.6.1-py3-none-any.whl (32.7KB)
deltascf_aims-0.6.1.tar.gz (30.2KB)