Emacs Lisp* has a system called "advice" that's maybe a bit clumsier than Python's, but is also more powerful. The relationship between decorator and decorated

Emacs Lisp* has a system called "advice" that's maybe a bit clumsier than Python's, but is also more powerful. The relationship between decorator and decorated [is configurable][0]. For example, the decorated function could be called conditionally on the result of applying the decorator to the arguments, something like: def _combined(args): return decorator(args) and original(args) It can also be applied retroactively, not just at the decorated function's definition. This is extremely handy in the context of configuring your text editor, but I admit I wouldn't like it in a program I was working on with other people. (Basically a form of monkeypatching.) * Granted not really used for general-purpose programming like Python. [0]:https://www.gnu.org/software/emacs/manual/html_node/elisp/Advice-Combinators.html https://www.gnu.org/software/emacs/manual/html_node/elisp/Ad...