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

flapy
1.132

This version was deleted from PyPI around 2023-12-14. Installing fails with:
$ pip3 install flapy==1.132 ERROR: Could not find a version that satisfies the requirement flapy==1.132
View other deleted versions of flapy

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/2023-12-13/ \ flapy==1.132
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Or, download files manually

And install manually via pip:
FLApy-1.132-py3-none-any.whl (37.1KB)
FLApy-1.132.tar.gz (50.7KB)