You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
trove4j was reported malicious
OSV:MAL-2025-998 - Malicious code in trove4j (PyPI)

trove4j
0.1.1

This version was deleted from PyPI around 2024-12-02. Installing fails with:
$ pip3 install trove4j==0.1.1 ERROR: Could not find a version that satisfies the requirement trove4j==0.1.1
View other deleted versions of trove4j

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/2024-12-01/ \ trove4j==0.1.1
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Or, download files manually

And install manually via pip:
trove4j-0.1.1-py3-none-any.whl (2.1KB)
trove4j-0.1.1.tar.gz (1.7KB)