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

sl-pirt
1.0.0rc1

This version was deleted from PyPI around 2026-04-08. Installing fails with:
$ pip3 install sl-pirt==1.0.0rc1 ERROR: Could not find a version that satisfies the requirement sl-pirt==1.0.0rc1
View other deleted versions of sl-pirt

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/2026-04-07/ \ sl-pirt==1.0.0rc1
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
sl_pirt-1.0.0rc1-py3-none-any.whl (133.7KB)
sl_pirt-1.0.0rc1.tar.gz (123.9KB)