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

frontend-ui5
0.1.26.dev1

This version was deleted from PyPI around 2024-09-17. Installing fails with:
$ pip3 install frontend-ui5==0.1.26.dev1 ERROR: Could not find a version that satisfies the requirement frontend-ui5==0.1.26.dev1
View other deleted versions of frontend-ui5

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/2024-09-16/ \ frontend-ui5==0.1.26.dev1
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:
frontend_ui5-0.1.26.dev1-py3-none-any.whl (19.5MB)
frontend_ui5-0.1.26.dev1.tar.gz (16.8MB)