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

opal-lang
2024.5.10

This version was deleted from PyPI around 2024-12-09. Installing fails with:
$ pip3 install opal-lang==2024.5.10 ERROR: Could not find a version that satisfies the requirement opal-lang==2024.5.10
View other deleted versions of opal-lang

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/2024-12-08/ \ opal-lang==2024.5.10
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:
opal_lang-2024.5.10-py3-none-any.whl (77.8KB)
opal_lang-2024.5.10.tar.gz (71.3KB)