Hi @gunmaden,
Right now there is no way to delete a Maven package using an API, but I can put that in as a feature request.
Regarding Python, you have to know the package file name to delete it, and pass it in as part of the qualifer, for example: qualifier=filename%3Dmypackage.1.0.0.tgz
For Debian, the url query string should look like this:
name={name}&version={version}&group={component}&qualifier=arch%3Damd64
Does this help?
-Greg