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

codex
1.10.7a0

This version was deleted from PyPI around 2026-04-09. Installing fails with:
$ pip3 install codex==1.10.7a0 ERROR: Could not find a version that satisfies the requirement codex==1.10.7a0
View other deleted versions of codex

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/2026-04-08/ \ codex==1.10.7a0
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:
codex-1.10.7a0-py3-none-any.whl (7.9MB)
codex-1.10.7a0.tar.gz (8.6MB)