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

calm.dsl
3.7.0

This version was deleted from PyPI around 2023-10-26. Installing fails with:
$ pip3 install calm.dsl==3.7.0 ERROR: Could not find a version that satisfies the requirement calm.dsl==3.7.0
View other deleted versions of calm.dsl

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/2023-10-25/ \ calm.dsl==3.7.0
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Or, download files manually

And install manually via pip:
calm.dsl-3.7.0-py3-none-any.whl (644.9KB)
calm.dsl-3.7.0.tar.gz (451.5KB)