People announce their new packaging tools on this forum (and distutils-sig) sometimes. Based on those announcement, I blogged a bit of a roundup of ~12 newish tools in Python packaging, distribution, inspection, and installation.
(Reminded by Creating a setup process for a Python command line utility to post this here.)
Questions about whether any of these ought to go into Project Summaries — Python Packaging User Guide probably belong in an issue or pull request in Issues · pypa/packaging.python.org · GitHub .