El dt 27 de 03 del 2007 a les 12:07 -0700, en/na Stefan Kuzminski va
escriure:
> Thanks for looking into this ( no complaints here! ). Indeed using the
> chunkshape parameter with pytables2.0 greatly improved the memory usage and
> overall speed.
Good!
> However...
>
> Switching to pytables2.0 brings a few wrinkles. Specifically there seems to
> be something about numpy string handling that yeilds extra 'junk' at the end
> of the string when the string column is referenced out, this code..
>
> from tables import *
>
> fp = openFile( "foo", 'w' )
>
> StringCol( itemsize=20,)
> table = fp.createTable( fp.root, 'title',
> { 'var1' : StringCol( itemsize=20) }, '')
> table.append( [['abc']])
> fp.flush()
>
> b = table.read()
> print b
> print b['var1']
>
>
> yeilds this output..
>
> [('abc',)]
> ['[EMAIL PROTECTED]']
> Closing remaining open files: foo... done
>
> Do you have any idea what this is? This is with numpy 1.0.1.
Well, this seems a bug in NumPy. I've entered a ticket for this:
http://projects.scipy.org/scipy/numpy/ticket/483
Cheers,
--
Francesc Altet | Be careful about using the following code --
Carabos Coop. V. | I've only proven that it works,
www.carabos.com | I haven't tested it. -- Donald Knuth
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