Merge pull request #130 from mwtoews/master

Testing requires the 'six' package for StringIO

Merge pull request #130 from mwtoews/master
Testing requires the 'six' package for StringIO
3bc1b7ba · Sean Gillies · 29a9ddb2 · 2a8e36cf · 3bc1b7ba
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,3 +3,4 @@ Cython==0.20
 Numpy==1.8.0
 pytest
 setuptools
+six