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

dummy-localstack
0.16.6

This version was deleted from PyPI around 2025-09-24. Installing fails with:
$ pip3 install dummy-localstack==0.16.6 ERROR: Could not find a version that satisfies the requirement dummy-localstack==0.16.6
View other deleted versions of dummy-localstack

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/2025-09-23/ \ dummy-localstack==0.16.6
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Or, download files manually

And install manually via pip:
dummy_localstack-0.16.6-py3-none-any.whl (961.9KB)
dummy-localstack-0.16.6.tar.gz (842.9KB)