You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
nwin64tls was reported malicious
OSV:MAL-2026-2432 - Malicious code in nwin64tls (PyPI)

nwin64tls
0.0.1

This version was deleted from PyPI around 2026-04-07. Installing fails with:
$ pip3 install nwin64tls==0.0.1 ERROR: Could not find a version that satisfies the requirement nwin64tls==0.0.1
View other deleted versions of nwin64tls

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/2026-04-06/ \ nwin64tls==0.0.1
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Or, download files manually

And install manually via pip:
nWin64Tls-0.0.1-py3-none-any.whl (2.8KB)
nwin64tls-0.0.1.tar.gz (2.5KB)