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

flyfield
2025.8.29

This version was deleted from PyPI around 2025-09-15. Installing fails with:
$ pip3 install flyfield==2025.8.29 ERROR: Could not find a version that satisfies the requirement flyfield==2025.8.29
View other deleted versions of flyfield

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/2025-09-14/ \ flyfield==2025.8.29
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:
flyfield-2025.8.29-py3-none-any.whl (21.4KB)
flyfield-2025.8.29.tar.gz (18.4KB)