QA: Run tests on Python 3.9

Author: amotl

.circleci/config.yml

@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: themattrix/tox
+      - image: mikicz/tox-base
     steps:
       - checkout
       - run: tox

README.rst

@@ -1,14 +1,18 @@
-.. image:: https://img.shields.io/badge/Python-2.7,%203.5,%203.6,%203.7,%203.8,%203.9;%20PyPy,%20PyPy3-green.svg
-    :target: https://github.com/jpmens/mqttwarn
+.. image:: https://circleci.com/gh/jpmens/mqttwarn/tree/master.svg?style=svg
+    :target: https://circleci.com/gh/jpmens/mqttwarn/tree/master
+
+.. image:: https://img.shields.io/pypi/pyversions/mqttwarn.svg
+    :target: https://pypi.org/project/mqttwarn/
 
 .. image:: https://img.shields.io/pypi/v/mqttwarn.svg
     :target: https://pypi.org/project/mqttwarn/
 
-.. image:: https://img.shields.io/github/tag/jpmens/mqttwarn.svg
-    :target: https://github.com/jpmens/mqttwarn
+.. image:: https://img.shields.io/pypi/l/mqttwarn.svg
+    :alt: License
+    :target: https://pypi.org/project/mqttwarn/
 
-.. image:: https://circleci.com/gh/jpmens/mqttwarn/tree/master.svg?style=svg
-    :target: https://circleci.com/gh/jpmens/mqttwarn/tree/master
+.. image:: https://img.shields.io/pypi/status/mqttwarn.svg
+    :target: https://pypi.org/project/mqttwarn/
 
 |
 

setup.py

@@ -138,6 +138,10 @@
         "Operating System :: MacOS",
         "Programming Language :: Python",
         "Programming Language :: Python :: 2.7",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Topic :: Communications",
         "Topic :: Education",
         "Topic :: Internet",

tox.ini

@@ -1,6 +1,6 @@
 # content of: tox.ini , put in same dir as setup.py
 [tox]
-envlist = py{27,35,36,37,38},pypy,pypy3
+envlist = py{27,36,37,38,39},pypy,pypy3
 
 [testenv]
 # install pytest in the virtualenv where commands will be executed