Update python testing classifier

Yoga testing runtime[1] has been updated to add py39
testing as voting. Unit tests update are handled by the
job template change in openstack-zuul-job

- https://review.opendev.org/c/openstack/openstack-zuul-jobs/+/820286

this commit updates the classifier in setup.cfg file.

[1] https://governance.openstack.org/tc/reference/runtimes/yoga.html

Change-Id: Iedb1c345df99ae9be5cce22ab930c6de7a5e7832

2 files changed, 2 insertions, 1 deletions

diff --git a/setup.cfg b/setup.cfg
index 9f06b5c..a1a60d8 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -21,6 +21,7 @@ classifier =
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
 
 [files]
 packages =
diff --git a/tox.ini b/tox.ini
index 8020b35..8e7aa16 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py38,pep8
+envlist = py39,pep8
 minversion = 3.18.0
 skipsdist = True
 ignore_basepython_conflict = True