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

preloop-sdk
0.2.21

This version was deleted from PyPI around 2025-04-13. Installing fails with:
$ pip3 install preloop-sdk==0.2.21 ERROR: Could not find a version that satisfies the requirement preloop-sdk==0.2.21
View other deleted versions of preloop-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/2025-04-12/ \ preloop-sdk==0.2.21
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Or, download files manually

And install manually via pip:
preloop_sdk-0.2.21-py3-none-any.whl (11.6KB)
preloop_sdk-0.2.21.tar.gz (10.7KB)