[SciPy-user] sequence emulation -/-> array access?
Alan G Isaac
aisaac at american.edu
Sat Dec 17 14:47:36 CST 2005
> On Fri, Dec 16, 2005 at 10:40:55AM -0500, Alan G Isaac wrote:
>> Is a special array interface necessary for scipy.array
>> to access even simple sequence emulators?
>> E.g., suppose I have
>> >>> class simple:
>> ... def __init__(self,data):
>> ... self.data = data
>> where it is enforced that data is a list,
>> and to class this I add sequence emulation
>> Can someone please point me to a minimal example where
>> I can then do
>> x = simple([1,2,3])
>> y = scipy.array(x)
>> and end up with an array of the list values
>> (just like when you do scipy.array([1,2,3])).
On Fri, 16 Dec 2005, Dave Kuhlman apparently wrote:
> # This should work OK. # def test1(): x = Simple([1.,
> 2., 3.,]) y = scipy.array(x.get_data()) print y
Sure. But I want to be able to do
x = simple([1,2,3])
y = scipy.array(x)
One reason: I don't want to test for what
kind of object I am passing to scipy.array,
whether it has the get_data attribute, etc.
So my question is:
what is a minimal set of attributes to allow
this to work. I have found that sequence emulation (see:
is not enough.
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