On May 17, 3:19 pm, Alex Hall <mehg...@gmail.com> wrote: > Hi all, > I am a bit confused about classes. What do you pass a class, since all > the actual information is passed to __init__? For example, say you > have a dog class. The dog object has a name, a size, and a color. I > believe you would say this: > > class dog(): > def __init__(self, name, size, color): > self.name=name > self.size=size > self.color=color > #end def > #end class > > What, then, gets passed to the class constructor? > class dog(whatGoesHere?): > Sometimes I see things passed to this. For example, if you create a > class for a wxPython frame, you will say: > class myapp(wx.App): > In this case you pass something. However, I have a class that I use in > one of my programs to create "contact" objects, which looks like this: > class contact(): > def __init__(self, name, email, status, service): > self.name=name > self.email=email > self.status=status > self.service=service > #end def > #end class > > Here, I do not pass anything to the class, only to __init__. What is going on? > > On a related note, is it horrible for resource usage to create a large > array, up to 500 or so, where each member is a small object? I am > thinking of, for example, a game board array where each member of the > array is a "square" object. A square might have a status, a color, and > other flags associated with it, so you could then say something like > board[i][j].hasGamePiece=True. Lookups and adjustments like this will > be going on a lot. Am I better off using an array of numbers where > each number means something different? > > Thanks in advance for any info. > > -- > Have a great day, > Alex (msg sent from GMail website) > mehg...@gmail.com;http://www.facebook.com/mehgcap
What you are calling "passing to a class" is the superclass (or list of superclasses) if you are creating a subclass. Under Python 2.x, you might want to subclass object (if you need/want a newstyle class), so it is fairly common to see: class foo(object): whatever Regards, Pat -- http://mail.python.org/mailman/listinfo/python-list