[prev in list] [next in list] [prev in thread] [next in thread] 

List:       python-3000
Subject:    Re: [Python-3000] turtle.Screen- how to implement best a Singleton
From:       Terry Reedy <tjreedy () udel ! edu>
Date:       2008-08-18 21:48:21
Message-ID: g8cqn3$qsn$1 () ger ! gmane ! org
[Download RAW message or body]


> I, for my part, prefer the latter solution (b). Example: a student, 
> having (interactively) produced some design using some turtle t = 
> Turtle() decides spontaneously to change backgroundcolor. s = Screen(); 
> s.bgcolor("pink") should do this for her -

My perhaps naive view is that students should be given name S bound to 
the single Screen object and not have direct access to the Screen class 
object to ever call it.  S.bgcolor should be all that they need to do.

_______________________________________________
Python-3000 mailing list
Python-3000@python.org
http://mail.python.org/mailman/listinfo/python-3000
Unsubscribe: http://mail.python.org/mailman/options/python-3000/python-3000%40progressive-comp.com
[prev in list] [next in list] [prev in thread] [next in thread]