[SciPy-dev] array dtypechar wrong or not

Pearu Peterson pearu at scipy.org
Tue Oct 25 13:45:33 CDT 2005



On Tue, 25 Oct 2005, Travis Oliphant wrote:

>
>>> b will point to a.  If we change b to have typecode 'L', then a will
>>> also change.  This would be surprising, I think.
>>>
>>>
>>
>> I agree with you up to a point that by default array should make a copy.
>> Changing `b` should not change `a`, so why should `a` change on changing
>> `b` typecode anyway? As it is now, array does not perform a complete
>> copy, that is, it ignores dtype argument.
>>
>>
> Ah, wait a minute here.  You were using array which makes a copy by
> default.    I think if a copy is made, then the typecode should change
> as you expected.  I'll look into this.

Ah, great! I was just having a trouble with creating an array with 
specified dtypechar and fortran flag and having OWNDATA true from another 
array but the code is getting worse and worse. But if this is a bug then 
the code simplifies immediately.

Thanks,
Pearu




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