misc: support Python 3.12 (#82)

.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-20.04, macOS-10.15, windows-2019]
-        python-version: [3.6, 3.7, 3.8, 3.9, "3.10"]
+        python-version: [3.6, 3.7, 3.8, 3.9, "3.10", 3.11, 3.12.0-rc.2]
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}

.pre-commit-config.yaml

@@ -1,7 +1,7 @@
 repos:
 
 - repo: https://github.com/pycqa/isort
-  rev: 5.10.1
+  rev: 5.12.0
   hooks:
   - id: isort
     additional_dependencies: [toml]

docstring_parser/attrdoc.py

@@ -5,19 +5,23 @@
 
 import ast
 import inspect
+import sys
 import textwrap
 import typing as T
 from types import ModuleType
 
 from .common import Docstring, DocstringParam
 
-ast_constant_attr = {
-    ast.Constant: "value",
-    # python <= 3.7:
-    ast.NameConstant: "value",
-    ast.Num: "n",
-    ast.Str: "s",
-}
+ast_constant_attr = {ast.Constant: "value"}
+
+if sys.version_info[:2] <= (3, 7):
+    ast_constant_attr.update(
+        {
+            ast.NameConstant: "value",
+            ast.Num: "n",
+            ast.Str: "s",
+        }
+    )
 
 
 def ast_get_constant_value(node: ast.AST) -> T.Any:

pyproject.toml

@@ -21,6 +21,9 @@ classifiers = [
     "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 :: 3.12",
     "Topic :: Documentation :: Sphinx",
     "Topic :: Text Processing :: Markup",
     "Topic :: Software Development :: Libraries :: Python Modules",