[Numpy-discussion] view takes no keyword arguments exception

Jochen Schroeder cycomanic@gmail....
Wed May 20 20:57:55 CDT 2009


On 21/05/09 00:20, Stéfan van der Walt wrote:
> Hi Jochen
> 
> 2009/5/20 Jochen Schroeder <cycomanic@gmail.com>:
> > I'm trying to help someone out with some problems with pyfftw
> > (pyfftw.berlios.de). He is seeing an exception,
> >
> > TypeError: view() takes no keyword arguments
> >
> > This doesn't only happen when he uses pyfftw but also when he does the
> > following:
> >
> >>>> import numpy as np
> >>>> a=np.arange(10)
> >>>> print a.view(dtype='float')
> > Traceback (most recent call last):
> >  File "<stdin>", line 1, in <module>
> > TypeError: view() takes no keyword arguments
> >
> > I he's on Windows and sees this error both with numpy 1.1.1 and 1.3.
> > I'm a bit lost anybody have an idea what could be the problem?
> 
> In the older versions of numpy, a.view(float) should work (float is
> preferable above 'float' as well), but I would guess that you are
> really looking for
> 
> a.astype(float)

Sorry maybe I phrased my question wrongly.  I don't want to change the code (This was just a short example).
I just want to know why it is failing on his system and what he
can do so that a.view(dtype='...') is working. I suspected it was an old
numpy installation but the person is saying that he installed a new
version and is still seeing the same problem (or does he just have an
old version of numpy floating around). 

Cheers
Jochen



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