James Turk wrote:
> Hi,
>
> I have a situation where I have some class members that should only be
> done once. Essentially my problem looks like this:
>
> class Base(object):
> dataset = None
>
> def __init__(self, param):
> if type(self).dataset is None:
> # code to load dataset based on param, expensive
>
> class ChildClass1(Base):
> def __init__(self):
> Base.__init__(self, data_params)
>
> class AnotherChildClass(Base):
> def __init__(self):
> Base.__init__(self, other_data_params)
>
>
> This seems to work, initialization is only done at the first creation
> of either class. I was just wondering if this is the 'pythonic' way
> to do this as my solution does feel a bit hackish.
What should happen with code like::
ChildClass1('foo')
ChildClass1('bar')
The 'param' is different, but 'dataset' should only get set the first time?
STeVe
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