qiime/qiime — pull request #1130 by charudatta-navare (2013-09-30 03:34:46+00:00)
Title: Set agg backend

In scripts/compute_core_microbiome.py and scripts/plot_semivariogram.py, the following two lines were added before the pylab imports:

from matplotlib import use
use('Agg', warn=False)

Otherwise, if user's matplotlib install tries to load up a graphical backend without having a DISPLAY, it shows an error.