[Matplotlib-devel] [Wheel-builders] Manylinux external library test case - matplotlib, tk

[Matthew Brett]

Hi,

On Mon, Apr 25, 2016 at 4:23 PM, Matthew Brett <matthew.brett at gmail.com> wrote:
> Hi,
>
> On Mon, Apr 25, 2016 at 12:42 PM, Olivier Grisel
> <olivier.grisel at ensta.org> wrote:
>> 2016-04-25 21:19 GMT+02:00 Benjamin Root <ben.v.root at gmail.com>:
>>> What would be better is if we can get rid of the compilation requirement,
>>> but from Michael's comments in the past, it seems that this isn't possible
>>> at the moment. The problem is that the compiled portion provides the image
>>> buffer access, which seems to not be available at the python level. Perhaps
>>> it might make sense to pursue submitting our code to the Tk/Tcl project so
>>> that we might be able to drop this step at some point?
>>
>> Wouldn't it be possible to rewrite this part using ctypes instead?
>
> I had the same thought - has anyone looked into that?

I was thinking of looking into this.  It would be very useful to
unlink matplotlib from the tk compile.  It's already a pain to get
this right for OSX - for the wheel build, we have to download the
activestate tcl/tk, check it's the right version, link to it, and then
make sure we haven't shipped any of it :

https://github.com/MacPython/matplotlib-wheels/blob/master/run_install.sh#L5
https://github.com/MacPython/matplotlib-wheels/blob/master/check_tcl.py
https://github.com/MacPython/matplotlib-wheels/blob/master/mpl_delocate.py

I'm sure it's also annoying on Windows.

Michael D - are you the right person to ask about this stuff?   Do you
have any pointers about where the problems will be?

Thanks a lot,

Matthew