You must insert the following header code into your QPython script.

#qpy:kivy

Sample

#qpy:kivy

import androidhelper droid = androidhelper.Android()

from jnius import autoclass autoclass('java.lang.System').out.println('Hello world') Stack = autoclass('java.util.Stack') stack = Stack() stack.push('hello') stack.push('world') droid.makeToast(stack.pop())