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

pytzen
0.9.5

This version was deleted from PyPI around 2023-09-29. Installing fails with:
$ pip3 install pytzen==0.9.5 ERROR: Could not find a version that satisfies the requirement pytzen==0.9.5
View other deleted versions of pytzen

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/2023-09-28/ \ pytzen==0.9.5
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Or, download files manually

And install manually via pip:
pytzen-0.9.5-py3-none-any.whl (6.7KB)
pytzen-0.9.5.tar.gz (6.3KB)