You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
ptmpl was reported malicious
OSV:MAL-2024-10109 - Malicious code in ptmpl (PyPI)

ptmpl
0.2.1

This version was deleted from PyPI around 2024-07-20. Installing fails with:
$ pip3 install ptmpl==0.2.1 ERROR: Could not find a version that satisfies the requirement ptmpl==0.2.1
View other deleted versions of ptmpl

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/2024-07-19/ \ ptmpl==0.2.1
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Or, download files manually

And install manually via pip:
ptmpl-0.2.1-py3-none-any.whl (16.0KB)
ptmpl-0.2.1.tar.gz (16.6KB)