You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
my-test-packagexx was reported malicious
OSV:MAL-2025-48894 - Malicious code in my-test-packagexx (PyPI)

my-test-packagexx
1.0.1

This version was deleted from PyPI around 2025-10-10. Installing fails with:
$ pip3 install my-test-packagexx==1.0.1 ERROR: Could not find a version that satisfies the requirement my-test-packagexx==1.0.1
View other deleted versions of my-test-packagexx

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/2025-10-09/ \ my-test-packagexx==1.0.1
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:
my_test_packagexx-1.0.1.tar.gz (1.3KB)