Add support for python 3.12

Fixes #416

graphene_sqlalchemy/converter.py

@@ -7,14 +7,14 @@
 
 from sqlalchemy import types as sqa_types
 from sqlalchemy.dialects import postgresql
+from sqlalchemy.ext.hybrid import hybrid_property
 from sqlalchemy.orm import (
     ColumnProperty,
     RelationshipProperty,
     class_mapper,
     interfaces,
     strategies,
 )
-from sqlalchemy.ext.hybrid import hybrid_property
 
 import graphene
 from graphene.types.json import JSONString

graphene_sqlalchemy/utils.py

@@ -3,9 +3,10 @@
 import warnings
 from collections import OrderedDict
 from functools import _c3_mro
+from importlib.metadata import version as get_version
 from typing import Any, Callable, Dict, Optional
 
-import pkg_resources
+from packaging import version
 from sqlalchemy import select
 from sqlalchemy.exc import ArgumentError
 from sqlalchemy.orm import class_mapper, object_mapper
@@ -22,16 +23,12 @@ def get_nullable_type(_type):
 
 def is_sqlalchemy_version_less_than(version_string):
     """Check the installed SQLAlchemy version"""
-    return pkg_resources.get_distribution(
-        "SQLAlchemy"
-    ).parsed_version < pkg_resources.parse_version(version_string)
+    return version.parse(get_version("SQLAlchemy")) < version.parse(version_string)
 
 
 def is_graphene_version_less_than(version_string):  # pragma: no cover
     """Check the installed graphene version"""
-    return pkg_resources.get_distribution(
-        "graphene"
-    ).parsed_version < pkg_resources.parse_version(version_string)
+    return version.parse(get_version("graphene")) < version.parse(version_string)
 
 
 SQL_VERSION_HIGHER_EQUAL_THAN_1_4 = False

setup.py

@@ -17,6 +17,7 @@
     "promise>=2.3",
     "SQLAlchemy>=1.1",
     "aiodataloader>=0.2.0,<1.0",
+    "packaging>=23.0",
 ]
 
 tests_require = [

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = pre-commit,py{37,38,39,310}-sql{12,13,14,20}
+envlist = pre-commit,py{37,38,39,310,311,312}-sql{12,13,14,20}
 skipsdist = true
 minversion = 3.7.0