[Numpy-discussion] Bytes vs. Unicode in Python3
Fri Nov 27 09:41:04 CST 2009
pe, 2009-11-27 kello 16:33 +0100, Francesc Alted kirjoitti:
> A Friday 27 November 2009 15:09:00 René Dudfield escrigué:
> > On Fri, Nov 27, 2009 at 1:49 PM, Francesc Alted <email@example.com> wrote:
> > > Correct. But, in addition, we are going to need a new 'bytes' dtype for
> > > NumPy for Python 3, right?
> > I think so. However, I think S is probably closest to bytes... and
> > maybe S can be reused for bytes... I'm not sure though.
> That could be a good idea because that would ensure compatibility with
> existing NumPy scripts (i.e. old 'string' dtypes are mapped to 'bytes', as it
> should). The only thing that I don't like is that that 'S' seems to be the
> initial letter for 'string', which is actually 'unicode' in Python 3 :-/
> But, for the sake of compatibility, we can probably live with that.
Well, we can "deprecate" 'S' (ie. never show it in repr, always only 'B'
> > Also, what will a bytes dtype mean within a py2 program context? Does
> > it matter if the bytes dtype just fails somehow if used in a py2
> > program?
> Mmh, I'm of the opinion that the new 'bytes' type should be available only
> with NumPy for Python 3. Would that be possible?
I don't see a problem in making a bytes_ scalar type available for
Python2. In fact, it would be useful for making upgrading to Py3 easier.
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