devops: test on Python 3.9 (#17)

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: [3.7, 3.8]
+        python-version: [3.7, 3.8, 3.9]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v2

.pre-commit-config.yaml

@@ -2,21 +2,21 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v3.1.0
+    rev: v3.3.0
     hooks:
     -   id: trailing-whitespace
     -   id: end-of-file-fixer
     -   id: check-yaml
     -   id: check-added-large-files
 -   repo: https://github.com/psf/black
-    rev: 19.10b0
+    rev: 20.8b1
     hooks:
     -   id: black
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.782
+    rev: v0.790
     hooks:
     -   id: mypy
 -   repo: https://gitlab.com/pycqa/flake8
-    rev: 'a7be77f761a4c29121d6bb6f61c11902281f9105'
+    rev: '3.8.4'
     hooks:
     -   id: flake8

local-requirements.txt

@@ -1,11 +1,10 @@
-black==19.10b0
-pytest==6.0.1
-pytest-cov==2.10.0
-mypy==0.782
-setuptools==49.2.0
+black==20.8b1
+pytest==6.1.2
+pytest-cov==2.10.1
+mypy==0.790
+setuptools==50.3.2
 twine==3.2.0
-twisted==20.3.0
-wheel==0.34.2
-flake8==3.8.3
-pre-commit==2.6.0
-Django==3.1.2
+wheel==0.35.1
+flake8==3.8.4
+pre-commit==2.8.2
+Django==3.1.3

setup.py

@@ -19,6 +19,7 @@ setuptools.setup(
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "License :: OSI Approved :: Apache Software License",
         "Operating System :: OS Independent",
         "Framework :: Pytest",