Add support for py39

Change-Id: I987a3da810613df104402a3acbe3c1c9dcd36ed1
Story: TRIPLEOCI-355

bindep.txt

@@ -18,12 +18,14 @@ gcc-c++           [platform:rpm]
 git               [platform:rpm]
 libffi-devel      [platform:rpm]
 openssl-devel     [platform:rpm]
-python-devel      [platform:rpm]
-python2-dnf       [platform:fedora]
+python-devel      [(platform:rpm platform:base-py2)]
+python2-dnf       [(platform:rpm platform:base-py2)]
 
 # For SELinux
-libselinux-python  [platform:rpm]
-libsemanage-python [platform:redhat]
+libselinux-python  [(platform:rpm platform:base-py2)]
+python3-libselinux  [(platform:rpm platform:base-py3)]
+libsemanage-python [(platform:rpm platform:base-py2)]
+python3-libsemanage-python [(platform:rpm platform:base-py3)]
 
 # Required for compressing collected log files in CI
 gzip

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.8
-envlist = linters,py38
+envlist = linters,py
 skipsdist = True
 
 # Automatic envs will only use the python version appropriate to that

tripleo_common/image/base.py

@@ -55,7 +55,7 @@ class BaseImageManager(object):
                     data = yaml.safe_load(cf.read()).get(section)
                     if not data:
                         return None
-                    self.logger.debug('%s JSON: %s', (section, str(data)))
+                    self.logger.debug('%s JSON: %s', section, str(data))
                 for item in data:
                     image_name = item.get('imagename')
                     if image_name is None:

zuul.d/layout.yaml

@@ -19,6 +19,7 @@
         - openstack-tox-py36
         - openstack-tox-py37
         - openstack-tox-py38
+        - openstack-tox-py39
         - tripleo-cross-tripleoclient-py37
         - tripleo-ci-centos-8-content-provider:
             dependencies: &deps_unit_lint
@@ -26,6 +27,7 @@
               - openstack-tox-py36
               - openstack-tox-py37
               - openstack-tox-py38
+              - openstack-tox-py39
         - tripleo-buildimage-overcloud-full-centos-8:
             dependencies: *deps_unit_lint
         - tripleo-buildimage-ironic-python-agent-centos-8: