James Stroud wrote:
> Hello All,
>
> If "__call__" allows anobject() and "__getitem__" allows anobject[arange],
> why
> not have "__brace__" (or some other, better name) for anobject{something}.
> Such braces might be useful for cross-sectioning nested data structures:
>
> anary = [[1,2,3],[4,5,6]]
>
> anary{2} ==> [3,6]
I could see possibly using it as a user defined container designator,
but it wouldn't quite work like your examples.
If you used the leading name in the same way as the 'r' in raw strings
to differentiate a new container type.
class j(User_Container):
# what ever news/inits needed
def anary(self, arg):
# code for anary method
jamesnewcontainer = j{[1,2,3],[4,5,6]}
jamesnewcontainer.anary(2) ==> [3,6]
>>>jamesnewcontainer
j{[1,2,3],[4,5,6]}
And this would work as well.
>>>j{[4,3,2],[1,2,3],[5,4,3]}.anary(1)
[3,2,4]
It doesn't add anything new, but it could make working with custom
storage objects easier.
> Also, if this exists already, I apologize because I have not seen it in any
> Python code before and I wouldn't know what to call it for googling.
There might be cases of dictionary use ambiguity. But I can't think of
any at the moment.
_Ron
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