Make the package compatible with python 2.70.9

There is actually unittest module now, so we have to work for the
possibility that unittest2 is not available.

Fixes #49.

1 files changed, 4 insertions, 1 deletions

diff --git a/test/test_input.py b/test/test_input.py
index cfd4142..6b5c5ca 100644
--- a/test/test_input.py
+++ b/test/test_input.py
@@ -1,7 +1,10 @@
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import, print_function, unicode_literals
 import test
-import unittest2 as unittest
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
 import yamlish
 
 test_data_list = [