You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
dccsx was reported malicious
OSV:MAL-2024-5033 - Malicious code in dccsx (PyPI)

dccsx
0.0.4

This version was deleted from PyPI around 2024-06-15. Installing fails with:
$ pip3 install dccsx==0.0.4 ERROR: Could not find a version that satisfies the requirement dccsx==0.0.4
View other deleted versions of dccsx

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/2024-06-14/ \ dccsx==0.0.4
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Or, download files manually

And install manually via pip:
dccsx-0.0.4-py2.py3-none-any.whl (78.6KB)
dccsx-0.0.4.tar.gz (81.1KB)