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

ytsaurus-spyt
1.70.1b19479.post8598068.dev34

This version was deleted from PyPI around 2025-05-06. Installing fails with:
$ pip3 install ytsaurus-spyt==1.70.1b19479.post8598068.dev34 ERROR: Could not find a version that satisfies the requirement ytsaurus-spyt==1.70.1b19479.post8598068.dev34
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==1.70.1b19479.post8598068.dev34
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Or, download files manually

And install manually via pip:
ytsaurus_spyt-1.70.1b19479.post8598068.dev34-py3-none-any.whl (1.7MB)
ytsaurus-spyt-1.70.1b19479.post8598068.dev34.tar.gz (1.7MB)