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

ns2json
1.0.1b0

This version was deleted from PyPI around 2024-03-12. Installing fails with:
$ pip3 install ns2json==1.0.1b0 ERROR: Could not find a version that satisfies the requirement ns2json==1.0.1b0
View other deleted versions of ns2json

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/2024-03-11/ \ ns2json==1.0.1b0
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:
ns2json-1.0.1b0-py3-none-any.whl (12.5KB)
ns2json-1.0.1b0.tar.gz (6.2KB)