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

locust-je-test-pep621
2.15.2.dev15

This version was deleted from PyPI around 2026-04-27. Installing fails with:
$ pip3 install locust-je-test-pep621==2.15.2.dev15 ERROR: Could not find a version that satisfies the requirement locust-je-test-pep621==2.15.2.dev15
View other deleted versions of locust-je-test-pep621

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/2026-04-26/ \ locust-je-test-pep621==2.15.2.dev15
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:
locust_je_test_pep621-2.15.2.dev15-py3-none-any.whl (809.1KB)
locust-je-test-pep621-2.15.2.dev15.tar.gz (1.4MB)