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

config-mgmt-server
1.0.12

This version was deleted from PyPI around 2025-04-27. Installing fails with:
$ pip3 install config-mgmt-server==1.0.12 ERROR: Could not find a version that satisfies the requirement config-mgmt-server==1.0.12
View other deleted versions of config-mgmt-server

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/2025-04-26/ \ config-mgmt-server==1.0.12
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:
config_mgmt_server-1.0.12-py3-none-any.whl (7.9KB)
config_mgmt_server-1.0.12.tar.gz (14.4KB)