While your Python advice seems sound (as far as I can tell in my ignorance), it's obviously not true that "code generation with dynamically-typed languages is dead". These two things are orthogonal. Dynamic languages can be, and are, compiled.

It's true that in less powerful languages, you need code generation to do what more powerful languages can do with higher-order functions and reflection. But it's also true that code generation (along with other techniques from compiler and language development) remain quite useful for writing shorter, clearer programs in environments that support this.