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

maas-task-backoff-framework
1.0.1

This version was deleted from PyPI around 2025-09-19. Installing fails with:
$ pip3 install maas-task-backoff-framework==1.0.1 ERROR: Could not find a version that satisfies the requirement maas-task-backoff-framework==1.0.1
View other deleted versions of maas-task-backoff-framework

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/2025-09-18/ \ maas-task-backoff-framework==1.0.1
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Or, download files manually

And install manually via pip:
maas_task_backoff_framework-1.0.1-py2-none-any.whl (40.2KB)
maas-task-backoff-framework-1.0.1.tar.gz (28.5KB)