[Numpy-discussion] record array with array elements

Igor Sylvester igorsyl@gmail....
Tue Jan 6 14:07:56 CST 2009


Everyone,

Shouldn't the itemsize below be 2?

>>> import numpy as np
>>> dtype = np.dtype( [ (((2,), 'top'), [('nested', 'i1')]) ] )
>>> dtype.itemsize
1
>>> np.__version__
'1.0.4'

The elements of the dtype are of type array of size 2.  Each element is a
(nested) record array of size 2 with one field of type 'i1'.  In contiguous
memory, this should look identical to an 'i1' array of size 2.

-Igor Sylvester
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