$HOME=/home/i matplotlib data path /usr/local/lib/python2.7/dist-packages/matplotlib-1.4.3-py2.7-linux-x86_64.egg/matplotlib/mpl-data ***************************************************************** You have the following UNSUPPORTED LaTeX preamble customizations: Please do not ask for support with these customizations active. ***************************************************************** loaded rc file /home/i/.config/matplotlib/matplotlibrc matplotlib version 1.4.3 verbose.level helpful interactive is False platform is linux2 CACHEDIR=/home/i/.cache/matplotlib font search path [u'/usr/local/lib/python2.7/dist-packages/matplotlib-1.4.3-py2.7-linux-x86_64.egg/matplotlib/mpl-data/fonts/ttf', u'/usr/local/lib/python2.7/dist-packages/matplotlib-1.4.3-py2.7-linux-x86_64.egg/matplotlib/mpl-data/fonts/afm', u'/usr/local/lib/python2.7/dist-packages/matplotlib-1.4.3-py2.7-linux-x86_64.egg/matplotlib/mpl-data/fonts/pdfcorefonts'] Using fontManager instance from /home/i/.cache/matplotlib/fontList.cache backend Qt4Agg version 4.9.1 findfont: Matching :family=sans-serif:style=normal:variant=normal:weight=normal:stretch=normal:size=medium to Ubuntu ('/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-R.ttf') with score of 0.000000 findfont: Matching :family=sans-serif:style=normal:variant=normal:weight=normal:stretch=normal:size=20.0 to Ubuntu ('/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-R.ttf') with score of 0.000000