Python has had lexical closures for many years. They're covered in my article on a bytecode compiler for Python (with code in Python): https://codewords.recurs

Python has had lexical closures for many years. They're covered in my article on a bytecode compiler for Python (with code in Python): https://codewords.recurse.com/issues/seven/dragon-taming-with-tailbiter-a-bytecode-compiler https://codewords.recurse.com/issues/seven/dragon-taming-wit... It's true that Lisp is a simpler language and thus better for learning this with if you know it.