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

openapi-python-embyapi
4.8.0.36

This version was deleted from PyPI around 2023-12-31. Installing fails with:
$ pip3 install openapi-python-embyapi==4.8.0.36 ERROR: Could not find a version that satisfies the requirement openapi-python-embyapi==4.8.0.36
View other deleted versions of openapi-python-embyapi

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/ \ openapi-python-embyapi==4.8.0.36
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Or, download files manually

And install manually via pip:
openapi_python_embyapi-4.8.0.36-py3-none-any.whl (1.1MB)
openapi_python_embyapi-4.8.0.36.tar.gz (336.8KB)