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

yazaki-packages
1.20210409.140208b0

This version was deleted from PyPI around 2024-02-21. Installing fails with:
$ pip3 install yazaki-packages==1.20210409.140208b0 ERROR: Could not find a version that satisfies the requirement yazaki-packages==1.20210409.140208b0
View other deleted versions of yazaki-packages

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/2024-02-19/ \ yazaki-packages==1.20210409.140208b0
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:
yazaki_packages-1.20210409.140208b0-py3-none-any.whl (6.9KB)
yazaki_packages-1.20210409.140208b0.tar.gz (7.0KB)