On Thu, Oct 19, 2006 at 09:03:57PM -0400, Pierre GM wrote:
> Indeed. That's basically why you have to edit your __array_finalize__ .
>
> class InfoArray(N.ndarray):
> def __new__(info_arr_cls,arr,info={}):
> info_arr_cls._info = info
> return N.array(arr).view(info_arr_cls)
> def __array_finalize__(self, obj):
> if hasattr(obj,'info'):
> self.info = obj.info
> else:
> self.info = self._info
> return
>
> OK, so you end up w/ two attributes 'info' and '_info', the latter having the
> info you want, the latter playing a temporary placeholder. That looks a bit
> overkill, but that works pretty nice.
Is there any reason why one can't simply do
class InfoArray(N.ndarray):
def __new__(info_arr_cls,arr,info={}):
x = N.array(arr).view(info_arr_cls)
x.info = info
return x
def __array_finalize__(self, obj):
if hasattr(obj,'info'):
self.info = obj.info
return
Regards
Stéfan
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