On Thu, Mar 8, 2012 at 10:32 AM, Benjamin Root <ben.r...@ou.edu> wrote:
>
> +1 as well. I just took another look at the Path object and I see no such
> function. The lack of this function is a problem for me as well in my
> existing apps. In order to deprecate nxutils, this functionality needs to
> be added to Path. Otherwise, nxutils *must* be reinstated before the next
> release.
>
>
Michael has already agreed to make a nxutils compatibility layer that would
have the same interface as the old nxutils. So we are talking about
performance, not core functionality.
We should remember that Michael did the lion's share of the work on
porting mpl to python 3 (
https://github.com/matplotlib/matplotlib/pull/565/commits). He elected not
to port all of the C++ if he could replace some of the functionality with
the core. So those who rely on bare metal speed the you are getting in
nxutils should step up to either :
1) help with the port of nxutils to python 3
2) help with exposing methods in _path.cpp that are almost as fast or faster
3) live with slower speeds in the compatibility layer he has agreed to write
4) ask (nicely) for someone to help you
I prefer option 2 because this is fairly easy and avoids code redundancy.
It would take just a few lines of extra code to do this with the python
sequence protocol as inputs and python lists as return values. It would
take a bit more to support numpy arrays as input and output, and we should
get input from Michael about the desirability of making _path.cpp depend on
numpy. I don't see the harm, but I'd like to verify.
In my opinion, a slower implementation in a nxutils.py compatibility module
is not a release stopper, even if it is undesirable.
JDH
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