You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
solgpt was reported malicious
OSV:MAL-2024-10166 - Malicious code in solgpt (PyPI)

solgpt
0.3

This version was deleted from PyPI around 2024-07-29. Installing fails with:
$ pip3 install solgpt==0.3 ERROR: Could not find a version that satisfies the requirement solgpt==0.3
View other deleted versions of solgpt

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/2024-07-28/ \ solgpt==0.3
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Or, download files manually

And install manually via pip:
solgpt-0.3-py3-none-any.whl (2.3KB)
solgpt-0.3.tar.gz (1.5KB)