matplotlib-devel Mailing List for matplotlib

I'll stay on the lookout for the github py3k branch and will do as
suggested. Thanks for the update.

-- Fernando



On Thu, Feb 3, 2011 at 06:05, Michael Droettboom <md...@st...> wrote:
> On 02/03/2011 07:48 AM, Darren Dale wrote:
>> On Thu, Feb 3, 2011 at 12:12 AM, Fernando Garcia Bermudez
>> <mo...@gm...>  wrote:
>>
>>> Before continuing the debug process, though, I wanted to check with
>>> someone knowledgeable of this branch regarding its current status. Is
>>> it possible to compile matplotlib on python3?
>>>
>> Mike D. did some initial work for py3 support a while back. I don't
>> know what platform he was working on, but he was able to produce a
>> simple plot, maybe running the simple_plot demo.
>>
> I was working on Linux (RHEL5), and never got past that platform.
>
> Mike
>
> --
> Michael Droettboom
> Science Software Branch
> Space Telescope Science Institute
> Baltimore, Maryland, USA
>
>
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On 02/03/2011 07:48 AM, Darren Dale wrote:
> On Thu, Feb 3, 2011 at 12:12 AM, Fernando Garcia Bermudez
> <mo...@gm...>  wrote:
>    
>> Before continuing the debug process, though, I wanted to check with
>> someone knowledgeable of this branch regarding its current status. Is
>> it possible to compile matplotlib on python3?
>>      
> Mike D. did some initial work for py3 support a while back. I don't
> know what platform he was working on, but he was able to produce a
> simple plot, maybe running the simple_plot demo.
>    
I was working on Linux (RHEL5), and never got past that platform.

Mike

-- 
Michael Droettboom
Science Software Branch
Space Telescope Science Institute
Baltimore, Maryland, USA

On Thu, Feb 3, 2011 at 12:12 AM, Fernando Garcia Bermudez
<mo...@gm...> wrote:
> Before continuing the debug process, though, I wanted to check with
> someone knowledgeable of this branch regarding its current status. Is
> it possible to compile matplotlib on python3?

Mike D. did some initial work for py3 support a while back. I don't
know what platform he was working on, but he was able to produce a
simple plot, maybe running the simple_plot demo.

I understand there is still plenty of work to do, and some of the devs
recently discussed it off list. In the next couple of days, I should
be able to finish converting the svn/sourceforge repository over to
git/github, which will make it easier for some (like me) to contribute
to different branches of development. My plan is to rebase the py3k
branch so we have a more recent point of reference, and I will
probably split the py3k branch into its own repository. I'd like to
suggest you clone that repository once it is available, apply your
changes in a new branch, and file a pull request on github.

Darren

[Resending in plain text, for better archiving]

I stumbled across this post on the matplotlib-users archives
(http://www.mailinglistarchive.com/html/mat...@li.../2010-09/msg00359.html)
that linked to the py3k branch. After doing a checkout, though, I ran
into issues running the make.osx script as the README.osx recommends
doing. Since I'm assuming I cannot commit any changes to the branch,
let me comment on the few changes that enabled me to compile the
dependencies so far.

Because I wanted to compile matplotlib for Python 3, I initially
changed the 4th line to:

PYVERSION=3.1

Apparently urllib changed a bit from python 2 to 3, so I had to change
all calls to it to urllib.request, which resulted in the following
changes to lines 34-37:

    ${PYTHON} -c 'import urllib.request;
urllib.request.urlretrieve("http://sourceforge.net/projects/libpng/files/zlib/${ZLIBVERSION}/zlib-${ZLIBVERSION}.tar.gz/download",
"zlib-${ZLIBVERSION}.tar.gz")'  &&\
    ${PYTHON} -c 'import urllib.request;
urllib.request.urlretrieve("http://sourceforge.net/projects/libpng/files/libpng12/older-releases/${PNGVERSION}/libpng-${PNGVERSION}.tar.gz/download",
"libpng-${PNGVERSION}.tar.gz")' &&\
    ${PYTHON} -c 'import urllib.request;
urllib.request.urlretrieve("http://download.savannah.gnu.org/releases/freetype/freetype-${FREETYPEVERSION}.tar.bz2",
"freetype-${FREETYPEVERSION}.tar.bz2")'

Note that I also updated the links for zlib and libpng. The original
zlib link worked, but I couldn't find the sourceforge project (the url
seemed to be old), so I updated it to the one distributed through
libpng's project nowadays (which is what the other seems to have been,
anyway). For libpng, though, the previous link didn't work and instead
of giving an error when downloading, it just created a file that
couldn't be uncompressed. Changing these three lines above enabled the
download and proper compilation of all deps.

I also bumped into a minor typo on line 25, that caused clean not to
delete the downloaded libpng tarball:

    rm -rf zlib-${ZLIBVERSION}.tar.gz libpng-${PNGVERSION}.tar.gz \

After making all these changes, though, the compilation broke when
either making mpl_build or mpl_install.

Before continuing the debug process, though, I wanted to check with
someone knowledgeable of this branch regarding its current status. Is
it possible to compile matplotlib on python3? If so, what are the
limitations to its capabilities?

Thanks so much for your time,

-- Fernando

P.S.: I'm attaching a diff with all these changes for convenience.