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

langchain-noctis
1.0.1b2

This version was deleted from PyPI around 2025-07-28. Installing fails with:
$ pip3 install langchain-noctis==1.0.1b2 ERROR: Could not find a version that satisfies the requirement langchain-noctis==1.0.1b2
View other deleted versions of langchain-noctis

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/2025-07-27/ \ langchain-noctis==1.0.1b2
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:
langchain_noctis-1.0.1b2-py3-none-any.whl (26.0KB)
langchain_noctis-1.0.1b2.tar.gz (22.8KB)