Correct.
However, I am using the 6.1 branch, and there were issues with that.
From the article...
In the 6.1 series, the problem was compounded by an additional feature which enables specifying in the document arguments to pass to the python method (Earlier series only allow a method to be called with no argument). The bundled python happens to include a method which executes via os.system one of its arguments, providing a simple route in 6.1 to execute arbitrary commands via such a crafted document.
I was expecting 6.1.3 to show up as a result.
