Thanks to everyone for your help. I am able to use array of structure (here Event is a class) in the following manner. But here I am fixing the array index as 4. Is there any easy way to keep it appending dynamically.
self.event = [Event() for x in range(4)] # Event is a class as posted in original message. I have one set of structures and want to process them, subsequently couple of them will not be able to pass the criteria and all passed ones I wanted to put in another list where I can dynamically append the structure. So that I can post this list to server. Thanks in advance. Regards Alok On Wed, May 28, 2008 at 1:53 PM, Arnaud Delobelle <[EMAIL PROTECTED]> wrote: > Arnaud Delobelle <[EMAIL PROTECTED]> writes: > > > "Alex Gusarov" <[EMAIL PROTECTED]> writes: > > > >>> class Event(object): > >>> > >>> Always subclass object, unless you have a very compelling reason not > to, > >>> or you are subclassing something else. > >>> > >> > >> I've thought that if I write > >> > >> class Event: > >> pass > >> > >> , it'll be subclass of object too, I was wrong? > > > > You are wrong for Python 2.X, but right for Python 3 where old-style > > classes are gone for good. > > > > What you define with the statement > > > > class Event: pass > > > > is an 'old-style' class. Witness: > > > > >>> class Event: pass > > ... > > >>> class NewEvent(object): pass > > ... > > >>> type(Event) > > <type 'classobj'> > > >>> type(NewEvent) > > <type 'type'> > > >>> type(Event()) > > <type 'instance'> > > del>>> type(NewEvent()) > > <class '__main__.NewEvent'> > > > > All old-style classes are actually objects of type 'classobj' (they > > all have the same type!), all their instances are all of type 'instance'. > > Oops somthing disappeared in the copy/paste process: > > >>> class FooBar: pass > ... > > > >>> type(FooBar) == type(Event) > > True > > >>> type(FooBar()) == type(Event()) > > True > > > > Whereas instances of new-style classes are of type their class: > > > > >>> class NewFooBar(object): pass > > ... > > >>> type(NewFooBar) == type(NewEvent) > > True > > >>> type(NewFooBar()) == type(NewEvent()) > > False > > > > However, in python 2.X (X > 2?), you can force all classes to of a > > certain type by setting the global variable '__metaclass__'. So: > > > > >>> type(Event) # Event is an old-style class > > <type 'classobj'> > > >>> __metaclass__ = type > > >>> class Event: pass > > ... > > >>> type(Event) # Now Event is new-style! > > <type 'type'> > > > > HTH > > > > -- > > Arnaud > -- > http://mail.python.org/mailman/listinfo/python-list > -- Regards Alok Kumar
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