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

fuel-efficiency
0.1.4

This version was deleted from PyPI around 2024-05-22. Installing fails with:
$ pip3 install fuel-efficiency==0.1.4 ERROR: Could not find a version that satisfies the requirement fuel-efficiency==0.1.4
View other deleted versions of fuel-efficiency

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/2024-05-21/ \ fuel-efficiency==0.1.4
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:
fuel_efficiency-0.1.4-py3-none-any.whl (11.3KB)
fuel_efficiency-0.1.4.tar.gz (7.8KB)