I built matplotlib on linux from source using: python setup.py build python setup.py install --home=3D/home/tom when I try to import=20 >>> import pylab Traceback (most recent call last): File "<stdin>", line 1, in ? File "/home/tom/lib/python/pylab.py", line 1, in ? from matplotlib.pylab import * File "/home/tom/lib/python/matplotlib/pylab.py", line 199, in ? import backends File "/home/tom/lib/python/matplotlib/backends/__init__.py", line 19, in = ? globals(),locals(),[backend_name]) File "/home/tom/lib/python/matplotlib/backends/backend_gtkagg.py", line 11, in ? from backend_gtk import gtk, FigureManagerGTK, FigureCanvasGTK,\ File "/home/tom/lib/python/matplotlib/backends/backend_gtk.py", line 21, = in ? from backend_gdk import RendererGDK File "/home/tom/lib/python/matplotlib/backends/backend_gdk.py", line 45, = in ? from matplotlib._nc_backend_gdk import pixbuf_get_pixels_array ImportError: No module named _nc_backend_gdk When I look in the backends dir in /home/tom/lib/python/matplotlib/backends i see the following files which does not include the .so file for _nc_backend_gdk __init__.py backend_gdk.py backend_qtagg.py __init__.pyc backend_gdk.pyc backend_qtagg.pyc _na_backend_agg.so backend_gtk.py backend_svg.py _nc_backend_agg.so backend_gtk.pyc backend_svg.pyc backend_agg.py backend_gtkagg.py backend_template.py backend_agg.pyc backend_gtkagg.pyc backend_template.pyc backend_agg2.py backend_gtkcairo.py backend_tkagg.py backend_agg2.pyc backend_gtkcairo.pyc backend_tkagg.pyc backend_cairo.py backend_paint.py backend_wx.py backend_cairo.pyc backend_paint.pyc backend_wx.pyc backend_fltkagg.py backend_ps.py backend_wxagg.py backend_fltkagg.pyc backend_ps.pyc backend_wxagg.pyc backend_gd.py backend_qt.py tkagg.py backend_gd.pyc backend_qt.pyc tkagg.pyc Is there something I am doing wrong? -Tom