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

pulumi-aws
6.40.0a1718108586

This version was deleted from PyPI around 2025-08-28. Installing fails with:
$ pip3 install pulumi-aws==6.40.0a1718108586 ERROR: Could not find a version that satisfies the requirement pulumi-aws==6.40.0a1718108586

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/2025-08-27/ \ pulumi-aws==6.40.0a1718108586
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: