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

pluggy-sdk
1.0.0.post54

This version was deleted from PyPI around 2025-09-22. Installing fails with:
$ pip3 install pluggy-sdk==1.0.0.post54 ERROR: Could not find a version that satisfies the requirement pluggy-sdk==1.0.0.post54
View other deleted versions of pluggy-sdk

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/2025-09-21/ \ pluggy-sdk==1.0.0.post54
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:
pluggy_sdk-1.0.0.post54-py3-none-any.whl (435.7KB)
pluggy_sdk-1.0.0.post54.tar.gz (186.0KB)