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

echo-alpha
0.1.0

This version was deleted from PyPI around 2024-06-14. Installing fails with:
$ pip3 install echo-alpha==0.1.0 ERROR: Could not find a version that satisfies the requirement echo-alpha==0.1.0
View other deleted versions of echo-alpha

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/2024-06-13/ \ echo-alpha==0.1.0
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Or, download files manually

And install manually via pip:
echo_alpha-0.1.0.tar.gz (1.8KB)