On Thu, Aug 11, 2011 at 9:50 AM, Damon McDougall
<d.mcdoug...@warwick.ac.uk>wrote:
> More diagnostics.
>
<snip>
>
> This is what I have:
> OS X Lion
> Fresh install of python 2.6 from macports
> Numpy version 1.6.1 (from macports)
> freetype (from macports)
> libpng (from macports)
> matplotlib 1.0.1 (from macports)
>
> When I run my plotting script, I get the following error as soon as the
> script starts (i.e., right after matplotlib is imported):
> /opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/__init__.py:403:
> UserWarning: matplotlibrc text.usetex can not be used with *Agg backend
> unless dvipng-1.5 or later is installed on your system
> warnings.warn( 'matplotlibrc text.usetex can not be used with *Agg '
>
> Note: I am using the PDF backend.
>
> When I try to save the plot to a pdf file, I get the following error:
> /opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py:1242:
> UserWarning: findfont: Font family ['serif'] not found. Falling back to
> Bitstream Vera Sans
> (prop.get_family(), self.defaultFamily[fontext]))
>
> This is frustrating because it's a serif font that I need.
>
> After much thought, and Googling, I found out how to suppress the first
> warning message, and that is to add the directory where dvipng lives to my
> PATH variable. It is worth noting here that dvipng version 1.5 does not
> exist. The latest version is 1.14 as can be seen here:
> http://download.savannah.gnu.org/releases/dvipng/
>
>
Actually 1.5 does exist, it's just older than 1.14 (think of it as 1.05).
Are you sure that Matplotlib could "see" dvipng when it was built? During
the install, it should spit out a bunch of details at the beginning with a
few headings in all caps. Under the heading "OPTIONAL USETEX DEPENDENCIES",
what's listed next to dvipng?
-Tony
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