On Feb 16, 2:23 am, s...@uce.gov wrote:
> How can I do something like this in python:
>
> #!/usr/bin/python3.1
>
> class MyNumbers:
> def __init__(self, n):
> self.original_value = n
> if n <= 100:
> self = SmallNumers(self)
> else:
> self = BigNumbers(self)
>
> class SmallNumbers:
> def __init__(self, n):
> self.size = 'small'
>
> class BigNumbers:
> def __init__(self, n):
> self.size = 'big'
>
> t = MyNumbers(200)
>
> When I do type(t) it says MyNumbers, while I'd want it to be BigNumbers,
> because BigNumbers and SmallNumbers will have different methods etc...
>
> Do I need to use metaclasses?
>
> Thanks.
> --
> Yves. http://www.SollerS.ca/
> http://blog.zioup.org/
If you don't want to use a factory function I believe you can do this:
class MyNumber(object):
def __new__(cls, n):
if n <= 100:
cls = SmallNumbers
else:
cls = BigNumbers
return object.__new__(cls, n)
...
Chard.
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