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...@stsci.edu>
To: matplotlib-devel@lists.sourceforge.net
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 <damon.mcdoug...@gmail.com>
>wrote:
>>On Tue, Sep 17, 2013 at 3:49 PM, Eric Firing <efir...@hawaii.edu> 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 is https://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>.
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 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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