Build/test on python 3.9

Author: mrginglymus

.appveyor.yml

@@ -123,6 +123,28 @@ environment:
       PYTHON_VERSION: '3.8'
       PYTHON_ARCH: '64'
       WHEEL_PATH: .tox/dist
+    - TOXENV: py39-cover,codecov,coveralls
+      TOXPYTHON: C:\Python39\python.exe
+      PYTHON_HOME: C:\Python39
+      PYTHON_VERSION: '3.9'
+      PYTHON_ARCH: '32'
+    - TOXENV: py39-cover,codecov,coveralls
+      TOXPYTHON: C:\Python39-x64\python.exe
+      PYTHON_HOME: C:\Python39-x64
+      PYTHON_VERSION: '3.9'
+      PYTHON_ARCH: '64'
+    - TOXENV: py39-nocov
+      TOXPYTHON: C:\Python39\python.exe
+      PYTHON_HOME: C:\Python39
+      PYTHON_VERSION: '3.9'
+      PYTHON_ARCH: '32'
+      WHEEL_PATH: .tox/dist
+    - TOXENV: py39-nocov
+      TOXPYTHON: C:\Python39-x64\python.exe
+      PYTHON_HOME: C:\Python39-x64
+      PYTHON_VERSION: '3.9'
+      PYTHON_ARCH: '64'
+      WHEEL_PATH: .tox/dist
 init:
   - ps: echo $env:TOXENV
   - ps: ls C:\Python*

.travis.yml

@@ -120,6 +120,35 @@ matrix:
         - WHEEL_MANYLINUX="1 cp38"
       python: '3.8'
       arch: amd64
+    - os: osx
+      osx_image: xcode11
+      language: generic
+      env:
+        - TOXENV=py39-cover
+    - env:
+        - TOXENV=py39-cover,codecov,extension-coveralls,coveralls
+      python: '3.9'
+      arch: arm64
+    - env:
+        - TOXENV=py39-cover,codecov,extension-coveralls,coveralls
+      python: '3.9'
+      arch: amd64
+    - os: osx
+      osx_image: xcode11
+      language: generic
+      env:
+        - TOXENV=py39-nocov
+        - WHEEL_PATH=.tox/dist
+    - env:
+        - TOXENV=py39-nocov
+        - WHEEL_MANYLINUX="2014-arm cp39"
+      python: '3.9'
+      arch: arm64
+    - env:
+        - TOXENV=py39-nocov
+        - WHEEL_MANYLINUX="1 cp39"
+      python: '3.9'
+      arch: amd64
 before_install:
   - python --version
   - uname -a

setup.py

@@ -98,6 +98,7 @@ def read(*names, **kwargs):
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         # uncomment if you test on these interpreters:

tox.ini

@@ -15,7 +15,7 @@ envlist =
     clean,
     check,
     docs,
-    {py27,py35,py36,py37,py38,pypy,pypy3}-{cover,nocov},
+    {py27,py35,py36,py37,py38,py39,pypy,pypy3}-{cover,nocov},
     report
 ignore_basepython_conflict = true
 
@@ -28,6 +28,7 @@ basepython =
     py36: {env:TOXPYTHON:python3.6}
     py37: {env:TOXPYTHON:python3.7}
     py38: {env:TOXPYTHON:python3.8}
+    py39: {env:TOXPYTHON:python3.9}
     {bootstrap,clean,check,report,docs,codecov,coveralls,extension-coveralls}: {env:TOXPYTHON:python3}
 setenv =
     PYTHONPATH={toxinidir}/tests