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

ucrypt
1.0.3.post1484351437

This version was deleted from PyPI around 2024-03-27. Installing fails with:
$ pip3 install ucrypt==1.0.3.post1484351437 ERROR: Could not find a version that satisfies the requirement ucrypt==1.0.3.post1484351437
View other deleted versions of ucrypt

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/2024-03-25/ \ ucrypt==1.0.3.post1484351437
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Or, download files manually

And install manually via pip:
ucrypt-1.0.3.post1484351437.tar.gz (4.1KB)