Op 2017-10-01, Bill schreef <bill_nos...@whoknows.net>: > I watched an example on YouTube where someone wrote a simple descriptor > ("@Time_it) to output the amount of time that it took ordinary functions > to complete. To be honest, I AM interested in descriptors.
Are you sure you are not confusing deSCRIPTtors and deCORAtors here? @Time_it is decorator syntax. Despite the similarity in the words, there are totally different things. Descriptors are objects with __get__, and optionally __set__ and __delete__ methods (i.e. they implement the descriptor protocols). Decorators aren't really an official type, but loosely speaking these are any functions which can be applied meaningfully with a single function or class as argument. Some very mundane functions can be (ab)used as decorators. In [1]: @repr ...: def hello(): ...: pass ...: In [2]: hello Out[2]: '<function hello at 0x1048a50d0>' Stephan -- https://mail.python.org/mailman/listinfo/python-list