[Matplotlib-users] fontList.cache not being updated
I'm working on updating matplotlib in Sage to 1.0. We're running into
a problem where it seems that the fontList.cache is not being updated.
I've included an example session below. The .matplotlib directory is
accessible here:
http://sage.math.washington.edu/home/jason/.matplotlib/ The problem
seems to be that it is looking for a file that does not exist:
[ja...@sage:/scratch/jason/sage-4.6.alpha2]$ ls
/scratch/grout/sage-4.5.3/local/lib/python2.6/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf
ls: cannot access
/scratch/grout/sage-4.5.3/local/lib/python2.6/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf:
No such file or directory
Does anyone have any idea what is going on? Why is the fontList.cache
file not being updated, instead of trying to access a path that doesn't
exist?
A related question is: I see the variable USE_FONTCONFIG in
font_manager.py. It says it is experimental. How stable is that code?
It's tempting to switch to using fontconfig.
Thanks,
Jason
Here is my example session:
In [1]: from pylab import *
In [2]: text(0.5, 0.5, 'text 0')
Out[2]: matplotlib.text.Text object at 0x18e7b50
In [3]: savefig('test.png')
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (532, 0))
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (643, 0))
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (10, 0))
---
RuntimeError Traceback (most recent call last)
/mnt/usb1/scratch/jason/sage-4.6.alpha2/ipython console in module()
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/pyplot.pyc
in savefig(*args, **kwargs)
361 def savefig(*args, **kwargs):
362 fig = gcf()
-- 363 return fig.savefig(*args, **kwargs)
364
365 @docstring.copy_dedent(Figure.ginput)
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/figure.pyc
in savefig(self, *args, **kwargs)
1082 kwargs.setdefault('edgecolor',
rcParams['savefig.edgecolor'])
1083
- 1084 self.canvas.print_figure(*args, **kwargs)
1085
1086 if transparent:
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/backend_bases.pyc
in print_figure(self, filename, dpi, facecolor, edgecolor, orientation,
format, **kwargs)
1884 orientation=orientation,
1885 bbox_inches_restore=_bbox_inches_restore,
- 1886 **kwargs)
1887 finally:
1888 if bbox_inches and restore_bbox:
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/backends/backend_agg.pyc
in print_png(self, filename_or_obj, *args, **kwargs)
436
437 def print_png(self, filename_or_obj, *args, **kwargs):
-- 438 FigureCanvasAgg.draw(self)
439 renderer = self.get_renderer()
440 original_dpi = renderer.dpi
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/backends/backend_agg.pyc
in draw(self)
392
393 self.renderer = self.get_renderer()
-- 394 self.figure.draw(self.renderer)
395
396 def get_renderer(self):
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/artist.pyc
in draw_wrapper(artist, renderer, *args, **kwargs)
53 def draw_wrapper(artist, renderer, *args, **kwargs):
54 before(artist, renderer)
--- 55 draw(artist, renderer, *args, **kwargs)
56 after(artist, renderer)
57
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/figure.pyc
in draw(self, renderer)
796 dsu.sort(key=itemgetter(0))
797 for zorder, func, args in dsu:
-- 798 func(*args)
799
800 renderer.close_group('figure')
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/artist.pyc
in draw_wrapper(artist, renderer, *args, **kwargs)
53 def draw_wrapper(artist, renderer, *args, **kwargs):
54 before(artist, renderer)
--- 55 draw(artist, renderer, *args, **kwargs)
56 after(artist, renderer)
57
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/axes.pyc
in draw(self, renderer, inframe)
1932
1933 for zorder, a in dsu:
- 1934 a.draw(renderer)
1935
1936 renderer.close_group('axes')
Re: [Matplotlib-users] fontList.cache not being updated
On 10/01/2010 11:31 AM, Jason Grout wrote:
I'm working on updating matplotlib in Sage to 1.0. We're running into
a problem where it seems that the fontList.cache is not being updated.
I've included an example session below. The .matplotlib directory is
accessible here:
http://sage.math.washington.edu/home/jason/.matplotlib/ The problem
seems to be that it is looking for a file that does not exist:
[ja...@sage:/scratch/jason/sage-4.6.alpha2]$ ls
/scratch/grout/sage-4.5.3/local/lib/python2.6/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf
ls: cannot access
/scratch/grout/sage-4.5.3/local/lib/python2.6/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf:
No such file or directory
Does anyone have any idea what is going on? Why is the fontList.cache
file not being updated, instead of trying to access a path that doesn't
exist?
There is a fix in SVN for this, but it has not yet been released. When
a font file is not found, it rebuilds the entire font cache on the spot.
A related question is: I see the variable USE_FONTCONFIG in
font_manager.py. It says it is experimental. How stable is that code?
It's tempting to switch to using fontconfig.
I use it as a matter of course on my Linux box and haven't had any
issues. It's experimental because it's the kind of thing that is so
affected by external environmental issues and distro differences. Just
because it works for me, there's no guarantee it will work
everywhere. But go ahead and give it a try and report back with the
distro you're using.
Mike
Thanks,
Jason
Here is my example session:
In [1]: from pylab import *
In [2]: text(0.5, 0.5, 'text 0')
Out[2]:matplotlib.text.Text object at 0x18e7b50
In [3]: savefig('test.png')
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (532, 0))
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (643, 0))
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (10, 0))
---
RuntimeError Traceback (most recent call last)
/mnt/usb1/scratch/jason/sage-4.6.alpha2/ipython console inmodule()
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/pyplot.pyc
in savefig(*args, **kwargs)
361 def savefig(*args, **kwargs):
362 fig = gcf()
-- 363 return fig.savefig(*args, **kwargs)
364
365 @docstring.copy_dedent(Figure.ginput)
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/figure.pyc
in savefig(self, *args, **kwargs)
1082 kwargs.setdefault('edgecolor',
rcParams['savefig.edgecolor'])
1083
- 1084 self.canvas.print_figure(*args, **kwargs)
1085
1086 if transparent:
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/backend_bases.pyc
in print_figure(self, filename, dpi, facecolor, edgecolor, orientation,
format, **kwargs)
1884 orientation=orientation,
1885 bbox_inches_restore=_bbox_inches_restore,
- 1886 **kwargs)
1887 finally:
1888 if bbox_inches and restore_bbox:
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/backends/backend_agg.pyc
in print_png(self, filename_or_obj, *args, **kwargs)
436
437 def print_png(self, filename_or_obj, *args, **kwargs):
-- 438 FigureCanvasAgg.draw(self)
439 renderer = self.get_renderer()
440 original_dpi = renderer.dpi
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/backends/backend_agg.pyc
in draw(self)
392
393 self.renderer = self.get_renderer()
-- 394 self.figure.draw(self.renderer)
395
396 def get_renderer(self):
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/artist.pyc
in draw_wrapper(artist, renderer, *args, **kwargs)
53 def draw_wrapper(artist, renderer, *args, **kwargs):
54 before(artist, renderer)
--- 55 draw(artist, renderer, *args, **kwargs)
56 after(artist, renderer)
57
/mnt/usb1/scratch/jason/sage-4.6.alpha2/local/lib/python2.6/site-packages/matplotlib/figure.pyc
in draw(self, renderer)
796 dsu.sort(key=itemgetter(0))
797 for zorder, func, args in dsu:
-- 798 func(*args)
799
800 renderer.close_group('figure')
Re: [Matplotlib-users] fontList.cache not being updated
On 10/01/2010 10:40 AM, Michael Droettboom wrote: On 10/01/2010 11:31 AM, Jason Grout wrote: I'm working on updating matplotlib in Sage to 1.0. We're running into a problem where it seems that the fontList.cache is not being updated. I've included an example session below. The .matplotlib directory is accessible here: http://sage.math.washington.edu/home/jason/.matplotlib/ The problem seems to be that it is looking for a file that does not exist: [ja...@sage:/scratch/jason/sage-4.6.alpha2]$ ls /scratch/grout/sage-4.5.3/local/lib/python2.6/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf ls: cannot access /scratch/grout/sage-4.5.3/local/lib/python2.6/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf: No such file or directory Does anyone have any idea what is going on? Why is the fontList.cache file not being updated, instead of trying to access a path that doesn't exist? There is a fix in SVN for this, but it has not yet been released. When a font file is not found, it rebuilds the entire font cache on the spot. Thanks. Do you know the commit? We'll apply it to the Sage matplotlib package. A related question is: I see the variable USE_FONTCONFIG in font_manager.py. It says it is experimental. How stable is that code? It's tempting to switch to using fontconfig. I use it as a matter of course on my Linux box and haven't had any issues. It's experimental because it's the kind of thing that is so affected by external environmental issues and distro differences. Just because it works for me, there's no guarantee it will work everywhere. But go ahead and give it a try and report back with the distro you're using. Well, with Sage, we're using it on a number of distros, flavors of OSX, Solaris, etc. So maybe I'll stick with the home-grown caching solution. At least until we've tested it a bit on different support platforms for Sage. I thought there was some sort of build bot for matplotlib that tested on a number of platforms. Do you know how the fontconfig stuff does on that (if it exists...). Thanks, Jason -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] fontList.cache not being updated
On 10/01/2010 11:46 AM, Jason Grout wrote: On 10/01/2010 10:40 AM, Michael Droettboom wrote: On 10/01/2010 11:31 AM, Jason Grout wrote: I'm working on updating matplotlib in Sage to 1.0. We're running into a problem where it seems that the fontList.cache is not being updated. I've included an example session below. The .matplotlib directory is accessible here: http://sage.math.washington.edu/home/jason/.matplotlib/ The problem seems to be that it is looking for a file that does not exist: [ja...@sage:/scratch/jason/sage-4.6.alpha2]$ ls /scratch/grout/sage-4.5.3/local/lib/python2.6/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf ls: cannot access /scratch/grout/sage-4.5.3/local/lib/python2.6/site-packages/matplotlib/mpl-data/fonts/ttf/Vera.ttf: No such file or directory Does anyone have any idea what is going on? Why is the fontList.cache file not being updated, instead of trying to access a path that doesn't exist? There is a fix in SVN for this, but it has not yet been released. When a font file is not found, it rebuilds the entire font cache on the spot. Thanks. Do you know the commit? We'll apply it to the Sage matplotlib package. It's r8712. A related question is: I see the variable USE_FONTCONFIG in font_manager.py. It says it is experimental. How stable is that code? It's tempting to switch to using fontconfig. I use it as a matter of course on my Linux box and haven't had any issues. It's experimental because it's the kind of thing that is so affected by external environmental issues and distro differences. Just because it works for me, there's no guarantee it will work everywhere. But go ahead and give it a try and report back with the distro you're using. Well, with Sage, we're using it on a number of distros, flavors of OSX, Solaris, etc. So maybe I'll stick with the home-grown caching solution. At least until we've tested it a bit on different support platforms for Sage. I thought there was some sort of build bot for matplotlib that tested on a number of platforms. Do you know how the fontconfig stuff does on that (if it exists...). I don't think the buildbots are turning on fontconfig support. And I believe all of the buildbots are some flavour of Ubuntu (the OS-X buildbot is not running), so there's not a lot of coverage. Mike Thanks, Jason -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
