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

impulcifer-py313
2.4.3

This version was deleted from PyPI around 2026-08-13. Installing fails with:
$ pip3 install impulcifer-py313==2.4.3 ERROR: Could not find a version that satisfies the requirement impulcifer-py313==2.4.3
View other deleted versions of impulcifer-py313

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/2026-08-12/ \ impulcifer-py313==2.4.3
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Or, download files manually

And install manually via pip:
impulcifer_py313-2.4.3-py3-none-any.whl (87.4MB)
impulcifer_py313-2.4.3.tar.gz (44.2MB)