I figured it out! I accidentally did something weird. When I built NumPy and SciPy, I used the --user option to tell distutils to build them in my home directory. I had not realized that --user installs the packages in ~/.local/lib/python2.7/site-packages/. I was assuming they would be installed in ~/lib/python2.7/site-packages, but I didn’t notice they were “missing” until just now. When I reinstalled NumPy and Scipy using the option --prefix=/home/cfinch and then rebuilt matplotlib, everything started working. I didn’t have to rebuild pycairo or pygtk; I just had to get everything in the same location. This is the first I’ve heard of installing anything in a .local directory…why is that even an option???
···
From: Craig Finch <oanjao@…9…>
To: Eric Firing <efiring@…202…>; “matplotlib-users@lists.sourceforge.net” matplotlib-users@lists.sourceforge.net
Sent: Wednesday, August 31, 2011 4:31 PM
Subject: Re: [Matplotlib-users] Problem with GTK backends after compiling matplotlib
I corrected the problem with the FreeType2 header file and rebuilt matplotlib from scratch, but I’m getting the same error. Centos5 puts the file ft2build.h in /usr/lib but matplotlib looks for it in /usr/lib/freetype2. I used this command:
PKG_CONFIG_PATH=/home/cfinch/lib/pkgconfig python2.7 setup.py build &> build_log.txt
and got this output:
basedirlist is: [‘/home/cfinch’]
BUILDING MATPLOTLIB
matplotlib: 1.0.1
python: 2.7.2 (default, Aug 30 2011, 12:57:00)
[GCC 4.1.2
20080704 (Red Hat 4.1.2-50)]
platform: linux2
REQUIRED DEPENDENCIES
numpy: 1.6.1
freetype2: 9.10.3
OPTIONAL BACKEND DEPENDENCIES
libpng: 1.2.10
Tkinter: no
* TKAgg requires
Tkinter
wxPython: no
* wxPython not found
Gtk+: gtk+: 2.10.4, glib: 2.12.3, pygtk: 2.10.6,
pygobject: 2.14.2
Mac OS X native: no
Qt: no
Qt4:
no
Cairo: 1.2.2
OPTIONAL DATE/TIMEZONE DEPENDENCIES
datetime: present, version unknown
dateutil: 1.5
pytz: 2010o
OPTIONAL USETEX DEPENDENCIES
dvipng: 1.5
ghostscript: 8.70
latex: 3.141592
pdftops: 3.00
[Edit setup.cfg to suppress
the above messages]
pymods [‘pylab’]
packages [‘matplotlib’, ‘matplotlib.backends’, ‘matplotlib.backends.qt4_editor’, ‘matplotlib.projections’, ‘matplotlib.testing’, ‘matplotlib.testing.jpl_units’, ‘matplotlib.tests’, ‘mpl_toolkits’, ‘mpl_toolkits.mplot3d’, ‘mpl_toolkits.axes_grid’, ‘mpl_toolkits.axes_grid1’, ‘mpl_toolkits.axisartist’, ‘matplotlib.sphinxext’, ‘matplotlib.numerix’, ‘matplotlib.numerix.mlab’, ‘matplotlib.numerix.ma’, ‘matplotlib.numerix.linear_algebra’, ‘matplotlib.numerix.random_array’, ‘matplotlib.numerix.fft’, ‘matplotlib.tri’, ‘matplotlib.delaunay’]
running install
running build
running build_py
…
There are no errors in the rest of the build or install logs. Further, I rebuild pycairo, pygtk, and matplotlib just to make sure one of them wasn’t missing a freetype dependency. Unfortunately,
I am still getting exactly the same error as before. Any other suggestions?
Craig
From: Eric Firing <efiring@…202…>
To: matplotlib-users@…2569…sourceforge.net
Sent: Tuesday, August 30, 2011 6:19 PM
Subject: Re: [Matplotlib-users] Problem with GTK backends after compiling matplotlib
On 08/30/2011 12:14 PM, Craig Finch wrote:
I successfully built Python 2.7.2, NumPy 1.61, and Scipy 0.9.0 in my
home directory on a Centos5 system. I am trying to build
matplotlib
1.0.1 in my home directory, but I am having a problem with the GTK
backends. I also built pycairo 1.2.2, pygobject 2.14.2, and pygtk 2.10.6
in my home directory (using the libraries and headers installed in the
default system locations). I downloaded a few pygtk examples from the
tutorial section of their web site and ran them to verify that pygtk
works correctly.
Here is the error I get when I run a script that contains only the line
“import matplotlib.pyplot”:
python2.7 test.py --verbose-helpful
$HOME=/home/cfinch
CONFIGDIR=/home/cfinch/.matplotlib
matplotlib data path
/home/cfinch/.local/lib/python2.7/site-packages/matplotlib/mpl-data
loaded rc file
/home/cfinch/.local/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc
matplotlib version 1.0.1
verbose.level helpful
interactive is False
units is False
platform is linux2
Using fontManager instance from /home/cfinch/.matplotlib/fontList.cache
Traceback (most recent call last):
File “test.py”, line 1, in
import matplotlib.pyplot
File
“/home/cfinch/.local/lib/python2.7/site-packages/matplotlib/pyplot.py”,
line 95, in
new_figure_manager, draw_if_interactive, show = pylab_setup()
File
“/home/cfinch/.local/lib/python2.7/site-packages/matplotlib/backends/init.py”,
line 25, in pylab_setup
globals(),locals(),[backend_name])
File
“/home/cfinch/.local/lib/python2.7/site-packages/matplotlib/backends/backend_gtkagg.py”,
line 10, in
from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK,
FigureCanvasGTK,
File
“/home/cfinch/.local/lib/python2.7/site-packages/matplotlib/backends/backend_gtk.py”,
line 28, in
from matplotlib.backends.backend_gdk import RendererGDK, FigureCanvasGDK
File
“/home/cfinch/.local/lib/python2.7/site-packages/matplotlib/backends/backend_gdk.py”,
line 29, in
from matplotlib.backends._backend_gdk import pixbuf_get_pixels_array
ImportError: No module named _backend_gdk
Here is the beginning of my matplotlib build log, which shows that the
build process is actually finding the GTK libraries:
basedirlist is: [‘/home/cfinch’]
BUILDING MATPLOTLIB
matplotlib: 1.0.1
python: 2.7.2 (default, Aug 30 2011, 12:57:00) [GCC 4.1.2
20080704 (Red Hat 4.1.2-50)]
platform: linux2
REQUIRED
DEPENDENCIES
numpy: 1.6.1
freetype2: 9.10.3
- WARNING: Could not find ‘freetype2’ headers in any
- of ‘/home/cfinch/include’, ‘.’,
- ‘/usr/include/freetype2’.
Freetype is a requirement, so my guess is that this is the origin of the
problem, even though it is is showing up as a puzzling import error for
_backend_gdk.
Eric
OPTIONAL BACKEND DEPENDENCIES
libpng: 1.2.10
Tkinter: no
- TKAgg requires Tkinter
wxPython: no
- wxPython not found
Gtk+: gtk+: 2.10.4, glib: 2.12.3, pygtk: 2.10.6,
pygobject: 2.14.2
Mac OS X native: no
Qt: no
Qt4: no
Cairo: 1.2.2
OPTIONAL DATE/TIMEZONE DEPENDENCIES
datetime: present, version unknown
dateutil: 1.5
pytz: 2010o
OPTIONAL USETEX DEPENDENCIES
dvipng: 1.5
ghostscript: 8.70
latex: 3.141592
pdftops: 3.00
------------ SNIP -----------
There are no errors in the build or install logs, but I can post the
rest of it if necessary. Also, the library _backend_gdk.so is present in
~/lib/python2.7/site-packages/matplotlib/backends/.
Any suggestions would be appreciated!
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