Please keep discussion on the list...... > > I'm not sure if I understand your question correctly but maybe this will > > help: > > > > If you want code to be run upon creating an instance of your class you > > would use __init__. Most common examples include setting attributes on > > the instance and doing some checks, e.g. > > > > class Person: > > def __init__( self, first, last ): > > if len( first ) > 50 or len( last ) > 50: > > raise Exception( 'The names are too long.' ) > > self.first = first > > self.last = last > > > > And you would use your class like so, > > > > p1 = Person( 'John', 'Smith' ) > > p2 = Person( "Some long fake name that you don't really want to > > except, I don't know if it's really longer than 50 but let's assume it > > is", "Smith" ) > > # This last one would raise an exception so you know that something is not > > okay > > > > HTH, > > Daniel > > Is not the code run when I create an instance by assignement somewhere else? > > I take the point that one might want to check for potential exceptions > immediately, but most examples in the literature aren't doing that and don't > seem to be doing anything that would not be done when creating an instance > by assignment later somewhere. I'm missing something basic here.
What do you mean by "create an instance by asignment somewhere else"? -- http://mail.python.org/mailman/listinfo/python-list
