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

appserver-sdk-hello-world-pkg
0.1.1

This version was deleted from PyPI around 2025-08-10. Installing fails with:
$ pip3 install appserver-sdk-hello-world-pkg==0.1.1 ERROR: Could not find a version that satisfies the requirement appserver-sdk-hello-world-pkg==0.1.1
View other deleted versions of appserver-sdk-hello-world-pkg

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/2025-08-09/ \ appserver-sdk-hello-world-pkg==0.1.1
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Or, download files manually

And install manually via pip:
appserver_sdk_hello_world_pkg-0.1.1-py3-none-any.whl (1.7KB)
appserver_sdk_hello_world_pkg-0.1.1.tar.gz (1.2KB)