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

qlip.core
0.1.2

This version was deleted from PyPI around 2025-10-15. Installing fails with:
$ pip3 install qlip.core==0.1.2 ERROR: Could not find a version that satisfies the requirement qlip.core==0.1.2
View other deleted versions of qlip.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/2025-10-14/ \ qlip.core==0.1.2
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:
qlip_core-0.1.2-cp310-cp310-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_34_x86_64.whl (3.9MB)
qlip_core-0.1.2-cp311-cp311-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_34_x86_64.whl (4.1MB)
qlip_core-0.1.2-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_34_x86_64.whl (4.0MB)