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

matricesm
0.9a3

This version was deleted from PyPI around 2024-10-15. Installing fails with:
$ pip3 install matricesm==0.9a3 ERROR: Could not find a version that satisfies the requirement matricesm==0.9a3
View other deleted versions of matricesm

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/2024-10-14/ \ matricesm==0.9a3
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Or, download files manually

And install manually via pip:
MatricesM-0.9a3-py3-none-any.whl (23.9KB)
MatricesM-0.9a3.tar.gz (26.6KB)