1 files changed, 4 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index 342b034e..c81a3391 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,4 +1,8 @@
 # Note: Run "python bootstrap.py" before running Tox, to generate metadata.
+#
+# To run Tox against all supported Python interpreters, you can set:
+#
+# export TOXENV='py2{6,7},py3{3,4,5,6},pypy'
 
 [testenv]
 deps=