tox.ini: Add py37 to the testing

cclauss · web-flow · commit ed9b7f8804fb · 2019-07-31T06:32:29.000+02:00
Python 3.4 is end of life...  Should we drop support for it?
diff --git a/tox.ini b/tox.ini
@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27, py34, py35, py36, pypy
+envlist = py27, py34, py35, py36, py37, pypy
 
 [testenv]
 commands = py.test -vv
