bump py37 to py38 in tox.ini

wangzihao · wangzihao · commit cbc1fb08ec7f · 2020-09-18T11:15:47.000+08:00
in 'victoria' cycle, we should test py38 by default.
and remove redundant python env.

Change-Id: I6426cc55ee9b6bee96620a8185fbdb39c24a68a8
diff --git a/tox.ini b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.2.0
-envlist = py37,pep8
+envlist = py38,pep8
 skipdist = True
 # Automatic envs (pyXX) will only use the python version appropriate to that
 # env and ignore basepython inherited from [testenv] if we set
