--- a/tox.ini	Mon Mar 20 10:25:04 2017 +0100
+++ b/tox.ini	Mon Mar 20 09:08:44 2017 +0100
@@ -4,7 +4,6 @@
   py{27,34}-{server,web,misc}
 
 [testenv]
-sitepackages = True
 deps =
   -r{toxinidir}/requirements/dev.txt
   py27: backports.tempfile