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

tpython
1.8.1

This version was deleted from PyPI around 2023-12-31. Installing fails with:
$ pip3 install tpython==1.8.1 ERROR: Could not find a version that satisfies the requirement tpython==1.8.1
View other deleted versions of tpython

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/2023-12-29/ \ tpython==1.8.1
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:
TPython-1.8.1-py2.py3-none-any.whl (8.3KB)