Marc 'BlackJack' Rintsch wrote: > In <[EMAIL PROTECTED]>, Niels L > Ellegaard wrote: > > I have been using scipy for some time now, but in the beginning I made > > a few mistakes with copying by reference. > But "copying by reference" is the way Python works. Python never copies > objects unless you explicitly ask for it. So what you want is a warning > for *every* assignment.
Maybe I am on the wrong track here, but just to clarify myself: I wanted a each object to know whether or not it was being referred to by a living object, and I wanted to warn the user whenever he tried to change an object that was being refered to by a living object. As far as I can see the garbage collector module would allow to do some of this, but one would still have to edit the assignment operators of each of the standard data structures: http://docs.python.org/lib/module-gc.html Anyway you are probably right that the end result would be a somewhat crippled version of python Niels -- http://mail.python.org/mailman/listinfo/python-list
