Add Python 3.11, 3.12 support

The `pkg_resources` package has been deprecated and is not even
available on Python 3.12. This patch switches to `importlib.metadata`
which is a built-in package.

.github/workflows/cd.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.10"
+          python-version: "3.11"
 
       - name: Install dependencies
         run: pipx install hatch

.github/workflows/ci.yml

@@ -16,23 +16,28 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.10"
+          python-version: "3.11"
 
       - name: Lint
         run: pipx run -- hatch run lint:check
         env:
           RUFF_OUTPUT_FORMAT: github
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
 
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.10"
+          python-version: ${{ matrix.python-version }}
 
       - name: Test
         run: pipx run -- hatch run test:run
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        python-version: ["3.10", "3.11", "3.12"]

pyproject.toml

@@ -23,6 +23,8 @@ classifiers = [
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
 ]
 dependencies = [
     "Jinja2 >= 3.1",

src/holocron/__main__.py

@@ -2,6 +2,7 @@
 
 import argparse
 import contextlib
+import importlib.metadata
 import io
 import logging
 import logging.handlers
@@ -10,7 +11,6 @@
 import warnings
 
 import colorama
-import pkg_resources
 import termcolor
 import yaml
 
@@ -146,7 +146,7 @@ def parse_command_line(args):
     parser.add_argument(
         "--version",
         action="version",
-        version=pkg_resources.get_distribution("holocron").version,
+        version=importlib.metadata.version("holocron"),
         help="show the holocron version and exit",
     )
 

src/holocron/_processors/feed.py

@@ -1,10 +1,10 @@
 """Generate RSS/Atom feed (with extensions if needed)."""
 
+import importlib.metadata
 import itertools
 import pathlib
 
 import feedgen.feed
-import pkg_resources
 
 import holocron
 
@@ -82,7 +82,7 @@ def _resolveitem(name, streamitem):
     feed_generator.link(_resolvefeed("link"), replace=True)
     feed_generator.category(_resolvefeed("category"), replace=True)
     feed_generator.contributor(_resolvefeed("contributor"), replace=True)
-    _generator_version = pkg_resources.get_distribution("holocron").version
+    _generator_version = importlib.metadata.version("holocron")
     feed_generator.generator(
         generator=f"Holocron/v{_generator_version}",
         version=_generator_version,

src/holocron/_processors/import_processors.py

@@ -1,10 +1,9 @@
 """Import processors from 3rd party sources."""
 
 import contextlib
+import importlib.metadata
 import sys
 
-import pkg_resources
-
 from ._misc import parameters
 
 
@@ -18,16 +17,15 @@
     }
 )
 def process(app, items, *, imports, from_=None):
-    distribution = pkg_resources.get_distribution("holocron")
-
     with contextlib.ExitStack() as exit:
         if from_:
             sys.path.insert(0, from_)
             exit.callback(sys.path.pop, 0)
 
         for import_ in imports:
-            entry_point = pkg_resources.EntryPoint.parse(import_, distribution)
-            app.add_processor(entry_point.name, entry_point.resolve())
+            name, path = importlib.metadata.Pair.parse(import_)
+            entry_point = importlib.metadata.EntryPoint(name, path, name)
+            app.add_processor(name, entry_point.load())
 
     # Processors are generators, so we must return iterable to be compliant
     # with the protocol. The only reason why a top-level 'process' function is

tests/_processors/test_feed.py

@@ -2,18 +2,18 @@
 
 import collections.abc
 import datetime
+import importlib.metadata
 import itertools
 import pathlib
 import unittest.mock
 
-import pkg_resources
 import pytest
 import untangle
 
 import holocron
 from holocron._processors import feed
 
-_HOLOCRON_VERSION = pkg_resources.get_distribution("holocron").version
+_HOLOCRON_VERSION = importlib.metadata.version("holocron")
 
 
 @pytest.fixture(scope="function")