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

preprocessing-pgp
0.2.7

This version was deleted from PyPI around 2023-09-25. Installing fails with:
$ pip3 install preprocessing-pgp==0.2.7 ERROR: Could not find a version that satisfies the requirement preprocessing-pgp==0.2.7
View other deleted versions of preprocessing-pgp

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/2023-09-24/ \ preprocessing-pgp==0.2.7
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Or, download files manually

And install manually via pip:
preprocessing_pgp-0.2.7-py3-none-any.whl (51.4MB)
preprocessing-pgp-0.2.7.tar.gz (51.4MB)