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

bat-lang
0.1.3

This version was deleted from PyPI around 2023-11-26. Installing fails with:
$ pip3 install bat-lang==0.1.3 ERROR: Could not find a version that satisfies the requirement bat-lang==0.1.3
View other deleted versions of bat-lang

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/2023-11-25/ \ bat-lang==0.1.3
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Or, download files manually

And install manually via pip:
bat_lang-0.1.3-py3-none-any.whl (8.7KB)