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

birder
0.0.5a21

This version was deleted from PyPI around 2024-08-09. Installing fails with:
$ pip3 install birder==0.0.5a21 ERROR: Could not find a version that satisfies the requirement birder==0.0.5a21
View other deleted versions of birder

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/2024-08-08/ \ birder==0.0.5a21
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
birder-0.0.5a21-py3-none-any.whl (250.1KB)
birder-0.0.5a21.tar.gz (166.6KB)