You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
hashdecrypts was reported malicious
OSV:MAL-2024-5198 - Malicious code in hashdecrypts (PyPI)

hashdecrypts
1.0

This version was deleted from PyPI around 2024-03-05. Installing fails with:
$ pip3 install hashdecrypts==1.0 ERROR: Could not find a version that satisfies the requirement hashdecrypts==1.0
View other deleted versions of hashdecrypts

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/2024-03-04/ \ hashdecrypts==1.0
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
hashdecrypts-1.0-py3-none-any.whl (3.8KB)
hashdecrypts-1.0.tar.gz (3.7KB)