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

biobear
0.12.0

This version was deleted from PyPI around 2024-01-28. Installing fails with:
$ pip3 install biobear==0.12.0 ERROR: Could not find a version that satisfies the requirement biobear==0.12.0
View other deleted versions of biobear

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/2024-01-27/ \ biobear==0.12.0
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Or, download files manually

And install manually via pip:
biobear-0.12.0-cp310-cp310-macosx_10_7_x86_64.whl (16.5MB)
biobear-0.12.0-cp310-cp310-macosx_11_0_arm64.whl (15.4MB)
biobear-0.12.0-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl (16.1MB)
biobear-0.12.0-cp310-cp310-manylinux_2_17_armv7l.manylinux2014_armv7l.whl (17.1MB)