On Sun, Mar 11, 2012 at 4:56 AM, hyperboogie <hyperboo...@gmail.com> wrote: > 1. What do you mean by "subclassing `object`"?
In Python 2 there are two different types of classes: classic classes, which are retained for backward compatibility, and new-style classes, which were introduced in Python 2.2. Classic classes are the default. In order to get a new-style class (strongly recommended), your class must inherit directly or indirectly from object. In the following, A and B are classic classes, whereas C and D are new-style classes: class A: pass class B(A): pass class C(object): pass class D(C): pass In Python 3, classic classes have been removed, and so all four of the classes above would be new-style. > 2. Is the mro function available only on python3? No, but it is available only on new-style classes. If you try it on a classic class, you'll get an AttributeError. Cheers, Ian -- http://mail.python.org/mailman/listinfo/python-list
