Test against Python 3.11

Author: agronholm

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: ["3.7", "3.10", "pypy-3.8"]
+        python-version: ["3.7", "3.10", "3.11-dev", "pypy-3.8"]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v2

pyproject.toml

@@ -23,6 +23,7 @@ classifiers = [
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
 ]
 dependencies = [
     "asphalt ~= 4.6",
@@ -87,7 +88,7 @@ show_missing = true
 [tool.tox]
 legacy_tox_ini = """
 [tox]
-envlist = py37, py38, py39, py310, pypy3
+envlist = py37, py38, py39, py310, py311, pypy3
 skip_missing_interpreters = true
 isolated_build = true