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

core-ml-utils
1.0.0

This version was deleted from PyPI around 2023-10-07. Installing fails with:
$ pip3 install core-ml-utils==1.0.0 ERROR: Could not find a version that satisfies the requirement core-ml-utils==1.0.0
View other deleted versions of core-ml-utils

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/2023-10-06/ \ core-ml-utils==1.0.0
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:
core_ml_utils-1.0.0-py3-none-any.whl (23.4KB)
core-ml-utils-1.0.0.tar.gz (18.9KB)