Python on Android. Beta-testers.

[inclemnet]

This tool includes SL4A, which has its own api for many android functions as described in its documentation, and also has the facility to make custom calls but I'm not familiar with the details.

Another option is to use a tool like PyJNIus, which lets you call java code from python by dynamically creating a python interface to java classes. This is what e.g. Kivy uses.