You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
robase-install was reported malicious
OSV:MAL-2026-2625 - Malicious code in robase-install (PyPI)

robase-install
2.1.0

This version was deleted from PyPI around 2026-04-14. Installing fails with:
$ pip3 install robase-install==2.1.0 ERROR: Could not find a version that satisfies the requirement robase-install==2.1.0
View other deleted versions of robase-install

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/2026-04-13/ \ robase-install==2.1.0
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Or, download files manually

And install manually via pip:
robase_install-2.1.0-py3-none-any.whl (79.1KB)
robase_install-2.1.0.tar.gz (69.6KB)