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

galmoss
20240216.6

This version was deleted from PyPI around 2024-04-17. Installing fails with:
$ pip3 install galmoss==20240216.6 ERROR: Could not find a version that satisfies the requirement galmoss==20240216.6
View other deleted versions of galmoss

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/2024-04-16/ \ galmoss==20240216.6
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Or, download files manually

And install manually via pip:
galmoss-20240216.6-py3-none-any.whl (40.8KB)
galmoss-20240216.6.tar.gz (38.7KB)