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

chembfn-webui
2.0.0

This version was deleted from PyPI around 2025-12-19. Installing fails with:
$ pip3 install chembfn-webui==2.0.0 ERROR: Could not find a version that satisfies the requirement chembfn-webui==2.0.0
View other deleted versions of chembfn-webui

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/2025-12-18/ \ chembfn-webui==2.0.0
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:
chembfn_webui-2.0.0-py3-none-any.whl (65.4KB)
chembfn_webui-2.0.0.tar.gz (68.2KB)