Bump py37 to py38 in tox.ini

In wallaby cycle, we should test py38 by default.

Change-Id: If1644b27dfe7b94d9fd709bbd9bc5d93afb2a374

1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index b979324..4c2eab5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.1.0
-envlist = py37,pep8
+envlist = py38,pep8
 ignore_basepython_conflict = True
 
 [testenv]