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

flet-core
0.8.3

This version was deleted from PyPI around 2024-04-04. Installing fails with:
$ pip3 install flet-core==0.8.3 ERROR: Could not find a version that satisfies the requirement flet-core==0.8.3
View other deleted versions of flet-core

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/2024-04-03/ \ flet-core==0.8.3
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Or, download files manually

And install manually via pip:
flet_core-0.8.3-py3-none-any.whl (240.3KB)