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

rcore
0.1.10

This version was deleted from PyPI around 2023-11-28. Installing fails with:
$ pip3 install rcore==0.1.10 ERROR: Could not find a version that satisfies the requirement rcore==0.1.10
View other deleted versions of rcore

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/2023-11-27/ \ rcore==0.1.10
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:
rcore-0.1.10-py3-none-any.whl (39.9KB)
rcore-0.1.10.tar.gz (30.7KB)