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

ytsaurus-spyt
1.72.1b495.post20685828.dev169589757

This version was deleted from PyPI around 2025-05-06. Installing fails with:
$ pip3 install ytsaurus-spyt==1.72.1b495.post20685828.dev169589757 ERROR: Could not find a version that satisfies the requirement ytsaurus-spyt==1.72.1b495.post20685828.dev169589757
View other deleted versions of ytsaurus-spyt

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/2025-05-05/ \ ytsaurus-spyt==1.72.1b495.post20685828.dev169589757
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:
ytsaurus_spyt-1.72.1b495.post20685828.dev169589757-py3-none-any.whl (1.7MB)
ytsaurus-spyt-1.72.1b495.post20685828.dev169589757.tar.gz (1.7MB)