Steve Holden wrote: > Paul Boddie wrote: > > Ilias Lazaridis wrote: > [...] > >>Have those old style classes any benefits? > > > > > > That you don't have to write the bizarre conceptual accident that is > > "(object)" when declaring a "top-level" class? > > > Though of course the easiest way to enforce your classes to new style is > to begin each module with > > __metaclass__ = type
I assume placing this in the central site import (e.g. sitecustomize.py) would collapse python? (I don't want to try it, maybe someone has an isolated instance available for trials). > >>> __metaclass__ = type > >>> class X: pass > ... > >>> X > <class '__main__.X'> > >>> X() > <__main__.X object at 0x186c6f0c> > >>> x = X() > >>> isinstance(x, object) > True > >>> type(x), type(X) > (<class '__main__.X'>, <type 'type'>) > >>> -- http://mail.python.org/mailman/listinfo/python-list
