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

zms3
3.1.3

This version was deleted from PyPI around 2026-03-12. Installing fails with:
$ pip3 install zms3==3.1.3 ERROR: Could not find a version that satisfies the requirement zms3==3.1.3
View other deleted versions of zms3

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/2026-03-11/ \ zms3==3.1.3
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Or, download files manually

And install manually via pip:
ZMS3-3.1.3-final.tar.gz (3.0MB)