You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
python-aliyun-sdk-ecs was reported malicious
OSV:MAL-2023-8365 - Malicious code in python-aliyun-sdk-ecs (PyPI)

python-aliyun-sdk-ecs
4.24.68

This version was deleted from PyPI around 2023-09-29. Installing fails with:
$ pip3 install python-aliyun-sdk-ecs==4.24.68 ERROR: Could not find a version that satisfies the requirement python-aliyun-sdk-ecs==4.24.68
View other deleted versions of python-aliyun-sdk-ecs

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/2023-09-28/ \ python-aliyun-sdk-ecs==4.24.68
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:
python-aliyun-sdk-ecs-4.24.68.tar.gz (76.6KB)