This is really cool. The AST transformation stuff here is neat, but relatively well-trodden ground. The more impressive new science here is the lazy_function

This is really cool. The AST transformation stuff here is neat, but relatively well-trodden ground. The more impressive new science here is the lazy_function decorator, which is implemented as a bytecode transformer on the code object that lives inside the decorated function. The author built his own library for the bytecode stuff, which lives here: https://github.com/llllllllll/codetransformer https://github.com/llllllllll/codetransformer.