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

karellen-llvm-core
22.1.0rc1.post26

This version was deleted from PyPI around 2026-02-26. Installing fails with:
$ pip3 install karellen-llvm-core==22.1.0rc1.post26 ERROR: Could not find a version that satisfies the requirement karellen-llvm-core==22.1.0rc1.post26
View other deleted versions of karellen-llvm-core

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/2026-02-25/ \ karellen-llvm-core==22.1.0rc1.post26
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:
karellen_llvm_core-22.1.0rc1.post26-py3-none-manylinux_2_28_x86_64.whl (31.2MB)