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

spectral-cli
0.1.3

This version was deleted from PyPI around 2023-11-17. Installing fails with:
$ pip3 install spectral-cli==0.1.3 ERROR: Could not find a version that satisfies the requirement spectral-cli==0.1.3
View other deleted versions of spectral-cli

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/2023-11-16/ \ spectral-cli==0.1.3
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Or, download files manually

And install manually via pip:
spectral_cli-0.1.3-py3-none-any.whl (30.3KB)
spectral_cli-0.1.3.tar.gz (19.0KB)