[Tutor] Class methods

[Alan Gauld]

"David Merrick" <merrickdav at gmail.com> wrote

> Is it possible too have
>
> crit1 = Critter("Dave")
> crit2 = Critter("Sweetie")
> farm = [crit1,crit2]  #List#
>
> and then be able to use Critters methods on farm?

No, Marc has already answered that.

> class Critter(object):
>
>    """A virtual pet"""
>    def __init__(self, name, hunger = 0, boredom = 0):
>
>    # __ denotes private method
>    def __pass_time(self):
>        self.hunger += 1
>        self.boredom += 1
>        self.__str__()
>
>    def __str__(self):
>        print("Hunger is",self.hunger, "Boredom is " ,self.boredom)
>        print("Unhappines is ",self.hunger + self.boredom," and Mood 
> is
> ",self.mood)


This is a really bad idea. Please do not do this,
it will almost certainly lead to problems later.
__str__ should return a string. It should not print anything.

Then you can simply call

print (self)

at the end of the pass_time method

or call

print (farm[0])

in your external code.

HTH,


-- 
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/