TST: skip pickle tests on not-little endianess

Author: jreback

pandas/io/tests/test_pickle.py

@@ -8,6 +8,7 @@
 import unittest
 import nose
 import os
+import sys
 
 import numpy as np
 import pandas.util.testing as tm
@@ -16,6 +17,9 @@
 from pandas.sparse.tests import test_sparse
 from pandas.util import py3compat
 
+if sys.byteorder != 'little':
+    raise nose.SkipTest('system byteorder is not little!')
+
 class TestPickle(unittest.TestCase):
     _multiprocess_can_split_ = True