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

cy3761
2024.1002.1804

This version was deleted from PyPI around 2024-11-01. Installing fails with:
$ pip3 install cy3761==2024.1002.1804 ERROR: Could not find a version that satisfies the requirement cy3761==2024.1002.1804
View other deleted versions of cy3761

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/2024-10-31/ \ cy3761==2024.1002.1804
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Or, download files manually

And install manually via pip:
cy3761-2024.1002.1804-py3-none-any.whl (2.3KB)
cy3761-2024.1002.1804.tar.gz (7.4KB)