only new classes can have properties, a major tool On Sat, Jun 26, 2010 at 8:17 AM, Payal <payal-pyt...@scriptkitchen.com>wrote:
> Hi, > Some questions about which I am a bit confused. > > 1. I know there is a difference between mro of classic and new style > classes. but I do not get why we need the new mro, the old one is easy > to predict and understand? > > 2. A friend of mine told me that in C++ abstract classes are classes > which can not be instatiated. Is she right, do we have them in python, > if yes can someone give a simple example? > > 3. In http://www.alan-g.me.uk/tutor/index.htm , Alan has given an > example in "User Defined Exceptions", > >>> class BrokenError(Exception): pass > > Even after reading the section a few times over, I fail to get utility > of such a class. Can someone please explain with better example? > Alan can you please cleanup that section, maybe make it broader and put > the stuff about "SystemExit" elsewhere. > > Thanks a lot in advance. > > With warm regards, > -Payal > -- > > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor >
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