Add support for Python 3.8

.pre-commit-config.yaml

@@ -1,12 +1,12 @@
 repos:
   - repo: https://github.com/asottile/pyupgrade
-    rev: v1.24.0
+    rev: v1.25.2
     hooks:
       - id: pyupgrade
         args: ["--py3-plus"]
 
   - repo: https://github.com/psf/black
-    rev: 19.3b0
+    rev: 19.10b0
     hooks:
       - id: black
         language_version: python3.7
@@ -15,7 +15,7 @@ repos:
         types: []
 
   - repo: https://gitlab.com/pycqa/flake8
-    rev: 3.7.8
+    rev: 3.7.9
     hooks:
       - id: flake8
         additional_dependencies: [flake8-2020]
@@ -27,11 +27,11 @@ repos:
         language_version: python3.7
 
   - repo: https://github.com/pre-commit/pygrep-hooks
-    rev: v1.4.1
+    rev: v1.4.2
     hooks:
       - id: python-check-blanket-noqa
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v2.3.0
+    rev: v2.4.0
     hooks:
       - id: check-yaml

.travis.yml

@@ -15,8 +15,10 @@ env:
 matrix:
   fast_finish: true
   include:
-    - python: 3.7
+    - python: 3.8
       env: TOXENV=lint
+    - python: 3.8
+      env: TOXENV=py38
     - python: 3.7
       env: TOXENV=py37
     - python: 3.6
@@ -25,8 +27,6 @@ matrix:
       env: TOXENV=py35
     - python: pypy3
       env: TOXENV=pypy3
-    - python: 3.8-dev
-      env: TOXENV=py38dev
   allow_failures:
     - env: TOXENV=pypy3
 

setup.py

@@ -40,6 +40,7 @@ setup(
         "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3 :: Only",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py37, py36, py35, pypy3, py38dev
+envlist = py38, py37, py36, py35, pypy3
 recreate = False
 
 [testenv]