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

num2ltr
1.0.0

This version was deleted from PyPI around 2025-12-28. Installing fails with:
$ pip3 install num2ltr==1.0.0 ERROR: Could not find a version that satisfies the requirement num2ltr==1.0.0
View other deleted versions of num2ltr

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/2025-12-27/ \ num2ltr==1.0.0
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Or, download files manually

And install manually via pip:
num2ltr-1.0.0-py3-none-any.whl (4.9KB)
num2ltr-1.0.0.tar.gz (5.8KB)