make or similar in Python

[Greg Wilson]

Hi, folks.  Has anyone ever written a dependency management/update tool
(like 'make') in Python?
I'm not looking for something that reads makefiles, and happens to be
written in Python; I'm looking
for a Python module that users import, then provide data to, in order to
manage dependencies.  (The
answer I got from the Perl crowd was 'cool idea, but no'; I'm hoping
I'll have more luck here.)
Thanks,
Greg (who'd really, really like to override some of the things that
GNU make does)