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

attrsmarkup
23.2.0

This version was deleted from PyPI around 2023-12-19. Installing fails with:
$ pip3 install attrsmarkup==23.2.0 ERROR: Could not find a version that satisfies the requirement attrsmarkup==23.2.0
View other deleted versions of attrsmarkup

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/2023-12-18/ \ attrsmarkup==23.2.0
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:
attrsmarkup-23.2.0-py3-none-any.whl (191.7KB)
attrsmarkup-23.2.0.tar.gz (190.4KB)