On Sat, Mar 28, 2009 at 11:45 PM, Eric Firing <efir...@hawaii.edu> wrote:
> Karen Tracey wrote:
>
> Hmm, the Ubuntu packaging for matplotlib seems to put a copy of
>> matplotlibrc only in /etc, where, I gather, it will not ever be used by
>> matplotlib? I guess one is supposed to copy it to one's home directory and
>> do per-user customization there. For my case, where the code is running
>> under Apache, I'd guess no matplotlibrc is being found so all defaults are
>> being used.
>>
>
> Karen,
>
> That seems a little odd; matplotlib doesn't look in /etc by default.
> Although I run ubuntu, I have never used the ubuntu package, so I have not
> run into this.
>
> The default matplotlibrc has been stripped down to a bare minimum:
> everything but the default backend selection is commented out.
>
> You may have already discovered this, but in case you haven't, you can find
> out where the active matplotlibrc is being found by using
> matplotlib_fname():
>
> In [1]:import matplotlib
>
> In [2]:matplotlib.matplotlib_fname()
>
> Out[2]:'/usr/local/lib/python2.5/site-packages/matplotlib/mpl-data/matplotlibrc'
>
Thanks, I hadn't found that. It seems the Ubuntu packaging has changed
things a bit:
k...@lbox:~$ python
Python 2.5.2 (r252:60911, Oct 5 2008, 19:24:49)
[GCC 4.3.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
>>> matplotlib.__version__
'0.98.3'
>>> matplotlib.matplotlib_fname()
'/etc/matplotlibrc'
>>> matplotlib.get_data_path()
'/usr/share/matplotlib/mpl-data'
>>>
Looking at the source code, I see in
/usr/lib/python2.5/site-packages/matplotlib/__init__.py (which is actually a
link to /usr/share/pyshared/matplotlib/__init__.py which I gather is a way
of having packages that run under multiple Python versions only have one
copy of the files installed), in matplotlib_fname, the very end is:
path = '/etc' # guaranteed to exist or raise
fname = os.path.join(path, 'matplotlibrc')
if not os.path.exists(fname):
warnings.warn('Could not find matplotlibrc; using defaults')
return fname
That is, it looks like they have hardcoded '/etc' where the
lib/matplotlib/__init__.py file in SVN has a call to get_data_path(). Don't
know why, but apparently if you run the Ubuntu repository version it's
/etc/matplotlibrc that gets used (assuming nothing is found earlier in the
search order). They like all config-type files to be under /etc maybe?
>
Thank you for the test script. I have added it to the "unit" subdirectory
> of matplotlib, after adding a short docstring. JDH may want to modify or
> move it.
>
>
You're welcome. Hope it's useful. I am glad the fix was relatively
simple.
Karen
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