2007/12/9, hashcollision <[EMAIL PROTECTED]>:
> From http://ivory.idyll.org/blog/dec-07/conversions.html:
> class X:
> internal = [5,6,7,8]
> def __getitem__(self, i):
> return self.internal[i]
>
> x = X()
>
> l = [1,2,3]
> print l + x
>
>
>
> fails withTypeError: can only concatenate list (not "instance") to list
> I tried:
> class X(list):
> internal = [5, 6, 7, 8]
>
> def __getitem__(self, i):
> return self.internal[i]
> def __len__(self):
> return internal
> def __iter__(self):
> return internal.__iter__()
> but this fails also.
Try this:
class X(list):
internal = [5, 6, 7, 8]
def __init__(self):
list.__init__(self, self.internal)
x = X()
l = [1,2,3]
print l + x
> IMHO, this is a problem. Is it? If so, I suggest that it be fixed in python
> 3000.
>
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-- Guilherme H. Polo Goncalves
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