Re: [matplotlib-devel] master macosx backend broken?

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You may want to look at or comment on the pull request I made yesterday 
to fix this:

https://github.com/matplotlib/matplotlib/pull/2433

Mike

On 09/19/2013 06:52 AM, Michiel de Hoon wrote:
> The crash occurs in the call to get_text_width_height_descent(self, s, 
> prop, ismath) due to the fact that
> family = prop.get_family() previously returned a list of strings, 
> while now it returns a list of unicode strings. The backend then fails 
> to find the font, and crashes over a NULL pointer. I will add a check 
> for a NULL pointer and raise a Python exception appropriately, and 
> also modify the backend to allow for unicode strings.
> Note that other backends may also trip over this).
>
> Best,
> -Michiel.
>
> ------------------------------------------------------------------------
> *From:* Michael Droettboom <md...@st...>
> *To:* mat...@li...
> *Sent:* Thursday, September 19, 2013 2:14 AM
> *Subject:* Re: [matplotlib-devel] master macosx backend broken?
>
> Try this. It at least gets "simple_plot.py" running again on the OS-X 
> backend.
>
> https://github.com/matplotlib/matplotlib/pull/2433
>
> Mike
>
> On 09/18/2013 12:42 PM, Michael Droettboom wrote:
>> FWIW, once getting past the error reported by Eric in 2431, I am able to
>> reproduce this on my Mac. I'm looking into it.  I suspect something in
>> the macosx backend is getting passed a unicode string where it used to
>> get a byte string.
>>
>> Mike
>>
>> On 09/17/2013 10:14 PM, Damon McDougall wrote:
>>> On Tue, Sep 17, 2013 at 8:55 PM, Damon McDougall
>>> <dam...@gm...>  <mailto:dam...@gm...>  wrote:
>>>> On Tue, Sep 17, 2013 at 3:49 PM, Eric Firing<ef...@ha...>  <mailto:ef...@ha...>  wrote:
>>>>> When I build mpl from master on python.org python 2.7, Mountain Lion,
>>>>> and try to plot anything with the macosx backend, I am now getting an
>>>>> Apple crash--the plot window flashes up and vanishes, and a big OS X
>>>>> crash report window pops up.  Ipython shows "Trace/BPT trap: 5".  I have
>>>>> never seen anything like this before.  Building from 1.3.0 works fine.
>>>>>
>>>>> Is anyone else seeing this?
>>>>>
>>>>> Master is also broken, at least on my machine, with other backends.  The
>>>>> suggested fix ishttps://github.com/matplotlib/matplotlib/pull/2431.
>>>>>
>>>>> Eric
>>>> Building from master produces a broken build of matplotlib for me.
>>>> After the build finishes, I get this warning from the linker:
>>>>
>>>> ld: warning: ignoring file /opt/local/lib/libfreetype.dylib, file was
>>>> built for unsupported file format ( 0xcf 0xfa 0xed 0xfe 0x 7 0x 0 0x 0
>>>> 0x 1 0x 3 0x 0 0x 0 0x 0 0x 6 0x 0 0x 0 0x 0 ) which is not the
>>>> architecture being linked (i386): /opt/local/lib/libfreetype.dylib
>>>>
>>>> I don't know why it's compiling with -arch i386.  It's also compiling
>>>> with -arch x86_64.
>>>>
>>>> When I install matplotlib, this is what happens from an ipython terminal:
>>>>
>>>> In [1]: import matplotlib
>>>> In [2]: print matplotlib.__version__
>>>> 1.4.x
>>>> In [3]: matplotlib.use('macosx')
>>>> In [4]: import matplotlib.pyplot as plt
>>>> In [5]: fig = plt.figure()
>>>> In [6]: ax = fig.add_subplot(1, 1, 1)
>>>> In [7]: ax.plot([1, 2, 3])
>>>> Out[7]: [<matplotlib.lines.Line2D at 0x107523250>]
>>>> In [8]: plt.show()
>>>> Trace/BPT trap: 5
>>>>
>>>> git bisecting says that f4adec7b569cfd0b30e0f8367ba8618b9e160f92 is
>>>> the first bad commit, which you can see the diff of
>>>> here<https://github.com/matplotlib/matplotlib/commit/f4adec7b569cfd0b30e0f8367ba8618b9e160f92>  <https://github.com/matplotlib/matplotlib/commit/f4adec7b569cfd0b30e0f8367ba8618b9e160f92>.
>>>>    That's a pretty big commit so it'll take a while to track down.
>>>>
>>>> I'm kind of swamped with work right now (a colleague I work with
>>>> recently resigned) so I don't have as much time as I'd like to
>>>> dedicate to helping out.
>>>>
>>>> Eric, I hope that helps a little bit.
>>>>
>>>> Best wishes,
>>>> Damon
>>>>
>>>> --
>>>> Damon McDougall
>>>> http://www.damon-is-a-geek.com  <http://www.damon-is-a-geek.com/>
>>>> Institute for Computational Engineering Sciences
>>>> 201 E. 24th St.
>>>> Stop C0200
>>>> The University of Texas at Austin
>>>> Austin, TX 78712-1229
>>> Oh, and I get the linker warning both with last good commit, *and* the
>>> first bad commit.  Just as another data point.
>>>
>
>
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