Hello,
I'm running into an unexpected issue in a program I'm writing, and I was
hoping someone could provide some clarification for me. I'm trying to
subclass numpy.ndarray (basically create a class to handle a 3D grid).
When I instantiate a numpy.ndarray, everything works as expected. When I
call numpy.ndarray's constructor directly within my subclass, I get a
deprecation warning about object.__init__ not taking arguments. Presumably
this means that ndarray's __init__ is somehow (for some reason?) calling
object's __init__...
This is some sample code:
>>> import numpy as np
>>> class derived(np.ndarray):
... def __init__(self, stuff):
... np.ndarray.__init__(self, stuff)
...
>>> l = derived((2,3))
__main__:3: DeprecationWarning: object.__init__() takes no parameters
>>> l
derived([[ 8.87744455e+159, 6.42896975e-109, 5.56218818e+180],
[ 1.79996515e+219, 2.41625066e+198, 5.15855295e+307]])
>>>
Am I doing something blatantly stupid? Is there a better way of going
about this? I suppose I could create a normal class and just put the grid
points in a ndarray as an attribute to the class, but I would rather
subclass ndarray directly (not sure I have a good reason for it, though).
Suggestions on what I should do?
Thanks!
Jason
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