chore: Python 3.11 preparation

- Enable Python 3.11 in tox
- Enable Python 3.11 in Github CI

.github/workflows/main.yml

@@ -7,9 +7,9 @@ on:
 
   pull_request:
     branches: ["main", "master"]
-  
+
   schedule:
-    - cron: '0 6 * * MON'  # Every Monday morning
+    - cron: "0 6 * * MON" # Every Monday morning
 
   workflow_dispatch:
 
@@ -28,7 +28,8 @@ jobs:
           - "3.7"
           - "3.8"
           - "3.9"
-          - "3.10.0"
+          - "3.10"
+          - "3.11.0-beta.4"
           - "pypy2"
           - "pypy-3.7"
         exclude:

changelog.d/206.feature.rst

@@ -0,0 +1 @@
+Added Python 3.11 testing

setup.py

@@ -93,6 +93,9 @@ def read(fname):
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: Jython",
         "Programming Language :: Python :: Implementation :: PyPy",

tox.ini

@@ -17,6 +17,7 @@ python =
     3.8: py38, py38-numpy
     3.9: py39, py39-numpy, lint, manifest, typing, changelog, docs
     3.10: py310
+    3.11: py311
     pypy-2: pypy2
     pypy-3: pypy3
 
@@ -96,6 +97,16 @@ setenv =
 extras = {env:TOX_AP_TEST_EXTRAS:tests}
 commands = coverage run -m pytest {posargs}
 
+[testenv:py311]
+# Python 3.6+ has a number of compile-time warnings on invalid string escapes.
+# PYTHONWARNINGS=d and --no-compile below make them visible during the Tox run.
+basepython = python3.10
+install_command = pip install --no-compile {opts} {packages}
+setenv =
+    PYTHONWARNINGS=d
+extras = {env:TOX_AP_TEST_EXTRAS:tests}
+commands = coverage run -m pytest {posargs}
+
 [testenv:coverage-report]
 basepython = python3.9
 skip_install = true