I've been scanning Python in a Nutshell, but this seems to be either undoable or so subtle that I don't know how to do it.
I want to subclass a base class that is returned from a Standard Library function (particularly, subclass file which is returned from open). I would add some extra functionality and keep the base functions, too. But I am stuck. E.g. class myfile(file): def myreadline(): #code here to return something read from file Then do something like (I know this isn't right, I'm just trying to convey the idea of what I would like) mf=myfile() mf=open("Afile","r") s=mf.myreadline() # Use my added function mf.close() # Use the original file function Possible in some way? Thanks in advance for any clues. -- Lou Pecora (my views are my own) REMOVE THIS to email me. -- http://mail.python.org/mailman/listinfo/python-list