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

etna-ts
1.2.0a0

This version was deleted from PyPI around 2025-12-06. Installing fails with:
$ pip3 install etna-ts==1.2.0a0 ERROR: Could not find a version that satisfies the requirement etna-ts==1.2.0a0
View other deleted versions of etna-ts

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/2025-12-05/ \ etna-ts==1.2.0a0
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Or, download files manually

And install manually via pip:
etna_ts-1.2.0a0-py3-none-any.whl (105.0KB)
etna-ts-1.2.0a0.tar.gz (77.2KB)