feat: Support Python 3.12

* Replace the use of pkg_resources (from setuptools, which is
  no longer included in virtual environments as of 3.12) with
  importlib.metadata.

* Add Python 3.12 to the test matrix.

.github/workflows/tox.yml

@@ -14,6 +14,7 @@ jobs:
           - 3.9
           - "3.10"
           - 3.11
+          - 3.12
 
     steps:
     - name: Check out code

CHANGELOG.md

@@ -1,3 +1,8 @@
+Unreleased
+-----------------------------
+
+* Support Python 3.12.
+
 Version 1.2.0 (2024-01-12)
 -----------------------------
 

tox.ini

@@ -1,12 +1,13 @@
 [tox]
-envlist = gitlint,py{38,39},flake8
+envlist = gitlint,py{38,39,310,311,312},flake8
 
 [gh-actions]
 python =
     3.8: gitlint,py38,flake8
     3.9: gitlint,py39,flake8
     3.10: gitlint,py310,flake8
     3.11: gitlint,py311,flake8
+    3.12: gitlint,py312,flake8
 
 [flake8]
 ignore = E124,W504

tutorregistry/__about__.py

@@ -8,6 +8,5 @@
 https://packaging.python.org/guides/single-sourcing-package-version/
 """
 
-import pkg_resources
-__version__ = pkg_resources.get_distribution(
-    'tutor-contrib-registry').version
+from importlib import metadata
+__version__ = metadata.version('tutor-contrib-registry')

tutorregistry/plugin.py

@@ -57,17 +57,17 @@ def registry(context) -> None:
 
         utils.kubectl(
             "delete", "secret", key_name,
-            f"--namespace={ namespace }",
+            f"--namespace={namespace}",
             "--wait=true",
             "--ignore-not-found=true")
 
         utils.kubectl(
-            "create", "secret", "docker-registry", f"{ key_name }",
-            f"--namespace={ namespace }",
-            f"--docker-server={ registry }",
-            f"--docker-username={ username }",
-            f"--docker-password={ password }",
-            f"--docker-email={ email }")
+            "create", "secret", "docker-registry", f"{key_name}",
+            f"--namespace={namespace}",
+            f"--docker-server={registry}",
+            f"--docker-username={username}",
+            f"--docker-password={password}",
+            f"--docker-email={email}")
 
         all_keys["imagePullSecrets"].append({"name": key_name})
 
@@ -77,4 +77,4 @@ def registry(context) -> None:
     utils.kubectl(
         "patch", "serviceaccount", "default",
         "-p", json.dumps(all_keys),
-        f"--namespace={ namespace }")
+        f"--namespace={namespace}")