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

acorn
0.0.14

This version was deleted from PyPI around 2026-02-03. Installing fails with:
$ pip3 install acorn==0.0.14 ERROR: Could not find a version that satisfies the requirement acorn==0.0.14
View other deleted versions of acorn

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/2026-02-02/ \ acorn==0.0.14
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Or, download files manually

And install manually via pip:
acorn-0.0.14-py2-none-any.whl (59.1KB)
acorn-0.0.14.tar.gz (44.0KB)