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

param2
2.0.0.dev2

This version was deleted from PyPI around 2023-12-08. Installing fails with:
$ pip3 install param2==2.0.0.dev2 ERROR: Could not find a version that satisfies the requirement param2==2.0.0.dev2
View other deleted versions of param2

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/2023-12-07/ \ param2==2.0.0.dev2
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:
param2-2.0.0.dev2-py2.py3-none-any.whl (49.5KB)
param2-2.0.0.dev2.tar.gz (62.2KB)