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

ecs-session
24.4.10

This version was deleted from PyPI around 2024-04-30. Installing fails with:
$ pip3 install ecs-session==24.4.10 ERROR: Could not find a version that satisfies the requirement ecs-session==24.4.10
View other deleted versions of ecs-session

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/2024-04-29/ \ ecs-session==24.4.10
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Or, download files manually

And install manually via pip:
ecs_session-24.4.10-py2.py3-none-any.whl (5.2KB)
ecs_session-24.4.10.tar.gz (4.4KB)