[x] Free software with an online source repository.
[x] Using Python for a considerable part of their functionality.
[x] Well-known, or at least prominently used in an identifiable niche.
[x] Maintained or otherwise demonstrably still functional on relevant platforms.
[x] An application, not a library or framework.
Additional notability info
Simple, easy to use, and lightweight yet powerful build automation tool(for stuff like running tests, style checker, distribution creation and etc. before each release of an application).
Included in Awesome Python.
Basic info
Application name: PyBuilder Application repo link: https://github.com/pybuilder/pybuilder Application home link: https://pybuilder.io/ Application description: Extensible build automation tool, mainly targeting Python applications.
Qualifications
Additional notability info
Simple, easy to use, and lightweight yet powerful build automation tool(for stuff like running tests, style checker, distribution creation and etc. before each release of an application). Included in Awesome Python.