[Numpy-discussion] PyObject typecodes are gone in numarray?

Berthold Höllmann hoel at gl-group.com
Tue Mar 18 02:36:07 CST 2003


Hello,

I am trying to convert a larger project of ours from Numeric to
numarray under some time pressure. One stumbling point is that
numarray does not support the Numeric "PyObject" typecode for
arrays. I am mapping some kind or database structure to Numeric arrays
and am using PyObject arrays for storing String columns for
consistency with the numeric columns. How would this be solved with
numarray? Example:

>python
Python 2.2.1 (#1, Dec 13 2002, 10:37:32) 
[GCC 3.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import Numeric as N
>>> a=N.zeros(3, N.PyObject)
>>> a[:] = ['abc', 'def', 'ghi']
>>> a
array([abc , def , ghi ],'O')

Thanks
Berthold
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