from __future__ import (absolute_import, division, print_function,

unicode_literals)

from matplotlib.externals import six

import difflib

import os

from matplotlib.testing import setup

_multiprocess_can_split_ = True

if not os.path.exists(os.path.join(

os.path.dirname(__file__), 'baseline_images')):

raise IOError(

'The baseline image directory does not exist. '

'This is most likely because the test data is not installed. '

'You may need to install matplotlib from source to get the '

'test data.')

def assert_str_equal(reference_str, test_str,

differences=''.join(diff)))