[Numpy-discussion] segfaults when passing ndarray subclass to ufunc with out=None
Darren Dale
dsdale24@gmail....
Sun Feb 8 10:49:12 CST 2009
I am seeing some really strange behavior when I try to pass an ndarray
subclass and out=None to numpy's ufuncs. This example will reproduce the
problem with svn numpy, the first print statement yields 1 as expected, the
second yields "<type 'builtin_function_or_method'>" and the third yields a
segmentation fault:
import numpy as np
class MyArray(np.ndarray):
__array_priority__ = 20
def __new__(cls):
return np.asarray(1).view(cls).copy()
def __repr__(self):
return 'my_array'
__str__ = __repr__
def __mul__(self, other):
return super(MyArray, self).__mul__(other)
def __rmul__(self, other):
return super(MyArray, self).__rmul__(other)
mine = MyArray()
print np.multiply(1, 1, None)
x = np.multiply(mine, mine, None)
print type(x)
print x
Darren
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