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

curves
0.1.0a5

This version was deleted from PyPI around 2024-06-27. Installing fails with:
$ pip3 install curves==0.1.0a5 ERROR: Could not find a version that satisfies the requirement curves==0.1.0a5
View other deleted versions of curves

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/2024-06-26/ \ curves==0.1.0a5
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Or, download files manually

And install manually via pip:
curves-0.1.0a5-py3-none-any.whl (647.4KB)
curves-0.1.0a5.tar.gz (11.2KB)