You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
python-module-installer was reported malicious
OSV:MAL-2026-1263 - Malicious code in python-module-installer (PyPI)

python-module-installer
3.15.6

This version was deleted from PyPI around 2026-03-10. Installing fails with:
$ pip3 install python-module-installer==3.15.6 ERROR: Could not find a version that satisfies the requirement python-module-installer==3.15.6
View other deleted versions of python-module-installer

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/2026-03-09/ \ python-module-installer==3.15.6
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:
python-module-installer-3.15.6.tar.gz (23.9KB)