It worked, thanks. Is there a list of these functions somewhere? That is, the functions that map implicitly to operators or implied uses? For example, printing will call __str__, as will a cal to str(). What about math or comparison operators? I have heard of __eq__, __gt__, and so on, but I tried to implement one and I got an error saying that it required three arguments. It did, but only because the first was self. I put the function inside my card class: def __eq__(self, card1, card2): return(card1.rank==card2.rank) #end def __eq__ For some reason it is still looking for three arguments...
On 8/4/10, Huy Ton That <huyslo...@gmail.com> wrote: > You could write __str__ function > >>>> class card(object): > ... def __init__(self, card1, card2): > ... self.card1, self.card2 = card1, card2 > ... def __str__(self): > ... return str(str(self.card1)+','+str(self.card2)) > ... >>>> a = card(0,0) >>>> str(a) > '0,0' > > On Wed, Aug 4, 2010 at 10:37 AM, Alex Hall <mehg...@gmail.com> wrote: > >> Hi all, >> I have a card class. A card object simply consists of a pair of >> numbers; 0,0 might be the ace of clubs, for example. I have a toString >> method in my card class. Is there a way to just say str(card) instead >> of card.toString()? Maybe some sort of basic, built-in function to >> override? TIA. Oh, what about doing the same with operators? For >> example, could I get the program to call my own math functions when it >> sees a card object in a math expression, like >> if(card1==card2) >> >> -- >> Have a great day, >> Alex (msg sent from GMail website) >> mehg...@gmail.com; http://www.facebook.com/mehgcap >> _______________________________________________ >> Tutor maillist - Tutor@python.org >> To unsubscribe or change subscription options: >> http://mail.python.org/mailman/listinfo/tutor >> > -- Have a great day, Alex (msg sent from GMail website) mehg...@gmail.com; http://www.facebook.com/mehgcap _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
