It's being actively developed. I know IBM uses it, at least in WebSphere.
About scalabilty I don't know, but it compiles to Java bytecode and the JVM is very mature (with Jython itself being mature as well), I'd wager that it scales well.
However, why are you using Jython with Django when you can use CPython? You're adding an additional layer of abstraction that will incur a performance hit.
It's being actively developed. I know IBM uses it, at least in WebSphere.
About scalabilty I don't know, but it compiles to Java bytecode and the JVM is very mature (with Jython itself being mature as well), I'd wager that it scales well.
However, why are you using Jython with Django when you can use CPython? You're adding an additional layer of abstraction that will incur a performance hit.