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

virtool-workflow
5.4.2

This version was deleted from PyPI around 2025-11-27. Installing fails with:
$ pip3 install virtool-workflow==5.4.2 ERROR: Could not find a version that satisfies the requirement virtool-workflow==5.4.2
View other deleted versions of virtool-workflow

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/2025-11-26/ \ virtool-workflow==5.4.2
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:
virtool_workflow-5.4.2-py3-none-any.whl (46.5KB)
virtool_workflow-5.4.2.tar.gz (31.4KB)