Python is by far the most requested interpreted language. I know you love Forth, but I hope you can understand that viewpoint is relatively rare among the people who buy & use Teensy.
I did not really think, that you would jump onto this idea using "weird" Forth here.
(( I have discovered, that if I use a simple way of local variables in Forth and if I use normal structured source text files instead of Blockfiles, I can solve the problem, that forth code is often not readable for me. And, I don't know why, but it is more rewarding or more fulfilling for me to write code in Forth. Perhaps because you write and test very small code snippets, you get faster positive feedback. I have been able to jump into understanding Midi Messages in one single afternoon. This is nice. In the old FIG Forth letters, people have claimed, that a project could be done in a 10th of the time compared to C.))
Still I think there is some misunderstanding regarding Python. It absolutely makes a lot of sense to use it, if you can use one of its powerful libraries, like Numpy and Pyplot.... I have used this at my PC and it saved me a lot of time.
On a controller, I have not seen the advantages of Python yet. The idea, that you have to find out the type of a variable at runtime is not convincing for me.