WombatWiki

http://matplotlib.org/users/customizing.html

import matplotlib as mpl; 
mpl.rcParams['font.family'] = 'STIXGeneral';
mpl.rcParams['axes.labelsize'] = '18';
mpl.rcParams['xtick.labelsize'] = '18';
mpl.rcParams['ytick.labelsize'] = '18';
mpl.rcParams['axes.grid'] = 'True';
mpl.rcParams['figure.figsize'] = '5,4';
mpl.rcParams['savefig.pad_inches'] = '0.1';
mpl.rcParams['savefig.bbox'] = 'tight';