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

cusum
0.1.15

This version was deleted from PyPI around 2023-10-19. Installing fails with:
$ pip3 install cusum==0.1.15 ERROR: Could not find a version that satisfies the requirement cusum==0.1.15
View other deleted versions of cusum

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/2023-10-18/ \ cusum==0.1.15
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Or, download files manually

And install manually via pip:
cusum-0.1.15.tar.gz (23.1KB)