Added six to Tox dependencies

ElSaico · ElSaico · commit 9047e0c75cf2 · 2016-11-21T15:37:31.000-02:00
This avoids a circular import issue on setup.py
diff --git a/tox.ini b/tox.ini
@@ -10,6 +10,7 @@ basepython =
     pypy32: pypy3.2
     pypy33: pypy3.3
 deps =
+    six
     pytest
     pytest-cov
     py{27,34,35,py2}: Flask
