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

isometric
1.0.6

This version was deleted from PyPI around 2023-11-12. Installing fails with:
$ pip3 install isometric==1.0.6 ERROR: Could not find a version that satisfies the requirement isometric==1.0.6
View other deleted versions of isometric

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/2023-11-11/ \ isometric==1.0.6
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Or, download files manually

And install manually via pip:
isometric-1.0.6-py3-none-any.whl (4.0KB)
isometric-1.0.6.tar.gz (3.4KB)