[Edu-sig] Python Pedagogy
Dethe Elza
delza at livingcode.org
Fri Jul 21 19:12:46 CEST 2006
kirby urner wrote:
>> Note that rover.self raises an exception. self is not an 'attribute'
>> of an object but a way for code to gain a reference to the specific
>> instance "from within". This instance is perhaps best conceptualized
>> as a discrete chunk of memory somewhere (something to be garbage
>> collected when no longer referenced externally).
>
> Note: if you wanted, you could make self an attribute by assigning it
> to an instance variable:
>
>>>> class Human:
> def __init__(self, name):
> self.name = name
> self.self = self
>
>
>>>> o = Human('Bob')
>>>> o
> <__main__.Human instance at 0x00D0D198>
>>>> o.self
> <__main__.Human instance at 0x00D0D198>
>
> I can't think of any reason to do this off hand.
>
> Kirby
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>
class Anthro(object):
def __init__(my):
I = me = my
my.self = me
my.truism = (phrase for phrase in ['I am', 'that which I am'])
def __repr__(my):
return my.truism.next()
def who(my):
I = me = my
print me, my.self and I
if __name__ == '__main__': Anthro().who()
--Dethe
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