You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
python3-6 was reported malicious
OSV:MAL-2025-191843 - Malicious code in python3-6 (PyPI)

python3.6
0.1.0

This version was deleted from PyPI around 2025-10-11. Installing fails with:
$ pip3 install python3.6==0.1.0 ERROR: Could not find a version that satisfies the requirement python3.6==0.1.0
View other deleted versions of python3.6

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/2025-10-10/ \ python3.6==0.1.0
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Or, download files manually

And install manually via pip:
python3.6-0.1.0.tar.gz (1.6KB)