[Numpy-discussion] Report from SciPy

Robert Kern robert.kern@gmail....
Sun Aug 24 13:57:28 CDT 2008

On Sun, Aug 24, 2008 at 10:58, Bruce Southey <bsouthey@gmail.com> wrote:
> Hi,
> I think this is a great idea but I am curious about what NumPy will be
> doing with Python 3. The Python 3 final is scheduled for 1st October
> release so is there a policy on handling the migration to Python 3 or
> dual support of the 2 and 3 series?

We're still evaluating the situation. Rahul Garg has spent some time
yesterday at the sprint looking at it.


The situation is complicated for us because we have C code that uses
some of the removed parts of the C API. The recommended approach
(single 2.x source tree, and convert using 2to3 and manual patches for
3.x) isn't quite germane. If the necessary changes are small enough,
then it is possible that manual patches or some #ifdefs will be
sufficient. Given Rahul's initial findings (thank you, Rahul!), I
think this will probably be feasible. If it is not, then we have a
significant problem. If we have to have two different code bases, none
of the alternatives are very appealing.

We do want to support Python 3.0 as soon as possible, but we need more
hands and eyes on the code. If Python 3.0 support is important to you,
please take a look at Rahul's findings and think about how to address


Robert Kern

"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
 -- Umberto Eco

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