You may want to check "Core Container"
You may want to check the "Core Container" forum. This forum is relatively new, and involves a new incubation process SpringSource is putting together to potentially "extend" their portfolio.
In case you didn't notice, one of the extensions is "Spring Python" which is the Spring solution for python.
Spring Extensions are community led projects that aim to extend Spring
Definitely a question for the "Core Container" forum. Spring Extensions, and the proposals thread, are present for community Extension 'projects' rather than container customization questions.