"The ultimate glue and scripting language" is taking it too far, I think.
I have loved Python too, but fell out of love a long time ago. Julia is much better in many ways, _in my opinion_.
Lua is a language that I have no experience of myself, but which is often embedded in things like this, because the interpreter is very small (if I'm not mistaken), which makes it convenient, and therefore in some ways superior to using either Javascript or Python.
Just saying that there are many opinions and ways to think about this.
I have loved Python too, but fell out of love a long time ago. Julia is much better in many ways, _in my opinion_.
Lua is a language that I have no experience of myself, but which is often embedded in things like this, because the interpreter is very small (if I'm not mistaken), which makes it convenient, and therefore in some ways superior to using either Javascript or Python.
Just saying that there are many opinions and ways to think about this.