Hi, I've written a patch to accomplish this in Py3.6.

This patch is much cleaner but has one drawback, when used as decorator factory, you have to specify name as a keyword argument. But considering the codes that have to been imported to check arguments, I think it's not bad. (I don't want to check `function` is a string or not.)

Also one side effect that I can not eliminate is when it is used as a normal function, the function instead of None is returned. I see the former patches get this problem too.

Hope to get feedback.