So the gist is: allow executing code at compile-time once, to not let it run a runtime again and again. And as a side-effect, you can implement new syntax-feat

So the gist is: allow executing code at compile-time once, to not let it run a runtime again and again. And as a side-effect, you can implement new syntax-features, without polluting the interpreter. Actually a nice idea. Surely something most devs wish to have from time to time. Though, it's also dangerous and can lead to even more unreadable code. Linter will probably also have "fun" adapting to this. And debugging this.. Well, anyway, personally I don't like the syntax. Putting a sign at words end feels just not pythonic. The Idea itself I favor more than I dislike it, as the advantages seems to outweight the disadvantages. As this is a PEP, I assume this will come in any case?