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

mpservice
0.14.1b4

This version was deleted from PyPI around 2023-12-27. Installing fails with:
$ pip3 install mpservice==0.14.1b4 ERROR: Could not find a version that satisfies the requirement mpservice==0.14.1b4
View other deleted versions of mpservice

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/2023-12-25/ \ mpservice==0.14.1b4
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:
mpservice-0.14.1b4-py3-none-any.whl (87.2KB)
mpservice-0.14.1b4.tar.gz (78.3KB)