Bump default tox env from py37 to py38

Python 3.8 is now our highest level supported python runtime.
This updates the default tox target environments to swap out
py37 for py38 to make sure local development testing is
covering this version.

This does not impact zuul jobs in any way, nor prevent local
tests against py37. It just changes the default if none is
explicitly provided.

Change-Id: I72444ae863915b98182a6badeef94ea9109036ab
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 2fd86ff..adbe63f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.2.0
-envlist = py37,pep8
+envlist = py38,pep8
 basepython = python3
 ignore_basepython_conflict = true