Chore: set minimal python version to 3.10 (#286)

Since some advanced types operations introduced in mkdocs>=1.5 are not
entirely supported by Python 3.8 and 3.9, let's switch to 3.10 as
minimal version:

Logs with failing error in #285
(https://github.com/Guts/mkdocs-rss-plugin/actions/runs/9450849461/job/26030426819?pr=285):

> FAILED
tests/test_build.py::TestBuildRss::test_simple_build_custom_output_basename
- TypeError: Subscripted generics cannot be used with class and instance
checks

```python
/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/mkdocs/plugins.py:96: in load_config
    return self.config.validate()
/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/mkdocs/config/base.py:231: in validate
    run_failed, run_warnings = self._validate()
/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/mkdocs/config/base.py:188: in _validate
    self[key] = config_option.validate(value)
/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/mkdocs/config/base.py:55: in validate
    return self.run_validation(value)
/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/mkdocs/config/config_options.py:110: in run_validation
    failed, warnings = config.validate()
/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/mkdocs/config/base.py:231: in validate
    run_failed, run_warnings = self._validate()
/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/mkdocs/config/base.py:188: in _validate
    self[key] = config_option.validate(value)
/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/mkdocs/config/config_options.py:186: in validate
    return self.run_validation(value)
/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/mkdocs/config/config_options.py:344: in run_validation
    if not isinstance(value, self._type):
/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/typing.py:769: in __instancecheck__
    return self.__subclasscheck__(type(obj))
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
```

.github/workflows/lint-and-tests.yml

@@ -22,8 +22,6 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
-          - "3.8"
-          - "3.9"
           - "3.10"
           - "3.11"
           - "3.12"

.pre-commit-config.yaml

@@ -1,27 +1,29 @@
-# See https://pre-commit.com for more information
-# See https://pre-commit.com/hooks.html for more hooks
-exclude: "node_modules|migrations|.venv|.direnv|tests/dev/|tests/fixtures/"
+exclude: ".venv|.direnv|tests/dev/|tests/fixtures/"
 fail_fast: false
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.6.0
     hooks:
       - id: check-added-large-files
-        args: ["--maxkb=500"]
+        args:
+          - --maxkb=500
       - id: check-ast
       - id: check-builtin-literals
       - id: check-case-conflict
       - id: check-json
       - id: check-toml
       - id: check-yaml
-        args: [--unsafe]
+        args:
+          - --unsafe
       - id: detect-private-key
       - id: end-of-file-fixer
       - id: fix-byte-order-marker
       - id: fix-encoding-pragma
-        args: [--remove]
+        args:
+          - --remove
       - id: trailing-whitespace
-        args: [--markdown-linebreak-ext=md]
+        args:
+          - --markdown-linebreak-ext=md
 
   - repo: https://github.com/pre-commit/pygrep-hooks
     rev: v1.10.0
@@ -33,32 +35,40 @@ repos:
     hooks:
       - id: pyupgrade
         args:
-          - "--py38-plus"
+          - "--py310-plus"
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
     rev: "v0.4.7"
     hooks:
       - id: ruff
-        args: ["--fix-only", "--target-version=py38"]
+        args:
+          - --fix-only
+          - --target-version=py310
 
   - repo: https://github.com/pycqa/isort
     rev: 5.13.2
     hooks:
       - id: isort
-        args: ["--profile", "black", "--filter-files"]
+        args:
+          - --profile
+          - black
+          - --filter-files
 
   - repo: https://github.com/psf/black
     rev: 24.4.2
     hooks:
       - id: black
-        args: ["--target-version=py38"]
+        args:
+          - --target-version=py310
 
   - repo: https://github.com/pycqa/flake8
     rev: 7.0.0
     hooks:
       - id: flake8
         language: python
-        args: ["--config=setup.cfg", "--select=E9,F63,F7,F82"]
+        args:
+          - --config=setup.cfg
+          - --select=E9,F63,F7,F82
 
 ci:
   autofix_prs: true

mkdocs_rss_plugin/integrations/theme_material_social_plugin.py

@@ -6,7 +6,6 @@
 
 # standard library
 from pathlib import Path
-from typing import Optional
 
 # 3rd party
 from mkdocs.config.config_options import Config
@@ -174,7 +173,7 @@ def get_social_cards_dir(self, mkdocs_config: Config) -> str:
         return social_plugin_cfg.config.cards_dir
 
     def get_social_card_build_path_for_page(
-        self, mkdocs_page: Page, mkdocs_site_dir: Optional[str] = None
+        self, mkdocs_page: Page, mkdocs_site_dir: str | None = None
     ) -> Path:
         """Get social card URL for a specific page in documentation.
 
@@ -197,7 +196,7 @@ def get_social_card_build_path_for_page(
     def get_social_card_url_for_page(
         self,
         mkdocs_page: Page,
-        mkdocs_site_url: Optional[str] = None,
+        mkdocs_site_url: str | None = None,
     ) -> str:
         """Get social card URL for a specific page in documentation.
 

mkdocs_rss_plugin/models.py

@@ -7,7 +7,7 @@
 # standard
 from datetime import datetime
 from pathlib import Path
-from typing import NamedTuple, Optional
+from typing import NamedTuple
 
 
 # ############################################################################
@@ -16,14 +16,14 @@
 class PageInformation(NamedTuple):
     """Data type to set and get page information in order to produce the RSS feed."""
 
-    abs_path: Optional[Path] = None
-    categories: Optional[list] = None
-    authors: Optional[tuple] = None
-    created: Optional[datetime] = None
-    description: Optional[str] = None
-    guid: Optional[str] = None
-    image: Optional[str] = None
-    title: Optional[str] = None
-    updated: Optional[datetime] = None
-    url_comments: Optional[str] = None
-    url_full: Optional[str] = None
+    abs_path: Path | None = None
+    categories: list | None = None
+    authors: tuple | None = None
+    created: datetime | None = None
+    description: str | None = None
+    guid: str | None = None
+    image: str | None = None
+    title: str | None = None
+    updated: datetime | None = None
+    url_comments: str | None = None
+    url_full: str | None = None

mkdocs_rss_plugin/plugin.py

@@ -11,7 +11,6 @@
 from email.utils import formatdate
 from pathlib import Path
 from re import compile
-from typing import Optional
 
 # 3rd party
 from jinja2 import Environment, FileSystemLoader, select_autoescape
@@ -58,9 +57,9 @@ def __init__(self):
         """Instanciation."""
         # dates source
         self.src_date_created = self.src_date_updated = "git"
-        self.meta_datetime_format: Optional[str] = None
+        self.meta_datetime_format: str | None = None
         self.meta_default_timezone: str = "UTC"
-        self.meta_default_time: Optional[datetime.time] = None
+        self.meta_default_time: datetime.time | None = None
         # pages storage
         self.pages_to_filter: list = []
         # prepare output feeds
@@ -208,7 +207,7 @@ def on_config(self, config: config_options.Config) -> dict:
     @event_priority(priority=-75)
     def on_page_content(
         self, html: str, page: Page, config: config_options.Config, files
-    ) -> Optional[str]:
+    ) -> str | None:
         """The page_content event is called after the Markdown text is rendered
         to HTML (but before being passed to a template) and can be used to alter
         the HTML body of the page.
@@ -297,7 +296,7 @@ def on_page_content(
             )
         )
 
-    def on_post_build(self, config: config_options.Config) -> Optional[dict]:
+    def on_post_build(self, config: config_options.Config) -> dict | None:
         """The post_build event does not alter any variables. \
         Use this event to call post-build scripts. \
         See: <https://www.mkdocs.org/user-guide/plugins/#on_post_build>

mkdocs_rss_plugin/util.py

@@ -7,12 +7,12 @@
 # standard library
 import logging
 import ssl
-import sys
+from collections.abc import Iterable
 from datetime import date, datetime
 from email.utils import format_datetime
 from mimetypes import guess_type
 from pathlib import Path
-from typing import Any, Iterable, Optional, Tuple, Union
+from typing import Any
 from urllib import request
 from urllib.error import HTTPError, URLError
 from urllib.parse import urlencode, urlparse, urlunparse
@@ -33,10 +33,7 @@
 )
 
 # conditional imports
-if sys.version_info < (3, 9):
-    from mkdocs_rss_plugin.timezoner_pre39 import set_datetime_zoneinfo
-else:
-    from mkdocs_rss_plugin.timezoner_py39 import set_datetime_zoneinfo
+from mkdocs_rss_plugin.timezoner_py39 import set_datetime_zoneinfo
 
 # ############################################################################
 # ########## Globals #############
@@ -58,9 +55,9 @@ def __init__(
         self,
         path: str = ".",
         use_git: bool = True,
-        integration_material_social_cards: Optional[
+        integration_material_social_cards: None | (
             IntegrationMaterialSocialCards
-        ] = None,
+        ) = None,
     ):
         """Class hosting the plugin logic.
 
@@ -139,7 +136,7 @@ def build_url(self, base_url: str, path: str, args_dict: dict = None) -> str:
             url_parts[4] = urlencode(args_dict)
         return urlunparse(url_parts)
 
-    def get_value_from_dot_key(self, data: dict, dot_key: Union[str, bool]) -> Any:
+    def get_value_from_dot_key(self, data: dict, dot_key: str | bool) -> Any:
         """
         Retrieves a value from a dictionary using a dot notation key.
 
@@ -168,8 +165,8 @@ def get_file_dates(
         source_date_update: str = "git",
         meta_datetime_format: str = "%Y-%m-%d %H:%M",
         meta_default_timezone: str = "UTC",
-        meta_default_time: Optional[datetime] = None,
-    ) -> Tuple[datetime, datetime]:
+        meta_default_time: datetime | None = None,
+    ) -> tuple[datetime, datetime]:
         """Extract creation and update dates from page metadata (yaml frontmatter) or
         git log for given file.
 
@@ -325,7 +322,7 @@ def get_file_dates(
                 get_build_datetime(),
             )
 
-    def get_authors_from_meta(self, in_page: Page) -> Optional[Tuple[str]]:
+    def get_authors_from_meta(self, in_page: Page) -> tuple[str] | None:
         """Returns authors from page meta. It handles 'author' and 'authors' for keys, \
         str and iterable as values types.
 
@@ -508,7 +505,7 @@ def get_description_or_abstract(
             )
             return ""
 
-    def get_image(self, in_page: Page, base_url: str) -> Optional[Tuple[str, str, int]]:
+    def get_image(self, in_page: Page, base_url: str) -> tuple[str, str, int] | None:
         """Get page's image from page meta or social cards and returns properties.
 
         Args:
@@ -610,7 +607,7 @@ def get_remote_image_length(
         http_method: str = "HEAD",
         attempt: int = 0,
         ssl_context: ssl.SSLContext = None,
-    ) -> Optional[int]:
+    ) -> int | None:
         """Retrieve length for remote images (starting with 'http' \
             in meta.image or meta.illustration). \
             It tries to perform a HEAD request and get the length from the headers. \
@@ -662,7 +659,7 @@ def get_remote_image_length(
         return int(img_length)
 
     @staticmethod
-    def get_site_url(mkdocs_config: Config) -> Optional[str]:
+    def get_site_url(mkdocs_config: Config) -> str | None:
         """Extract site URL from MkDocs configuration and enforce the behavior to ensure \
         returning a str with length > 0 or None. If exists, it adds an ending slash.
 
@@ -688,7 +685,7 @@ def get_site_url(mkdocs_config: Config) -> Optional[str]:
 
         return site_url
 
-    def guess_locale(self, mkdocs_config: Config) -> Optional[str]:
+    def guess_locale(self, mkdocs_config: Config) -> str | None:
         """Extract language code from MkDocs or Theme configuration.
 
         :param mkdocs_config: configuration object

setup.py

@@ -6,7 +6,6 @@
 
 # standard library
 from pathlib import Path
-from typing import List, Union
 
 # 3rd party
 from setuptools import find_packages, setup
@@ -26,7 +25,7 @@
 # ##################################
 
 
-def load_requirements(requirements_files: Union[Path, List[Path]]) -> list:
+def load_requirements(requirements_files: Path | list[Path]) -> list:
     """Helper to load requirements list from a path or a list of paths.
 
     Args:
@@ -79,7 +78,7 @@ def load_requirements(requirements_files: Union[Path, List[Path]]) -> list:
     # run
     entry_points={"mkdocs.plugins": ["rss = mkdocs_rss_plugin.plugin:GitRssPlugin"]},
     # dependencies
-    python_requires=">=3.8, <4",
+    python_requires=">=3.10, <4",
     extras_require={
         # tooling
         "dev": load_requirements(HERE / "requirements/development.txt"),
@@ -93,8 +92,6 @@ def load_requirements(requirements_files: Union[Path, List[Path]]) -> list:
         "Intended Audience :: Developers",
         "Intended Audience :: Information Technology",
         "Programming Language :: Python :: 3",
-        "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",

sonar-project.properties

@@ -6,7 +6,7 @@ sonar.projectKey=Guts_mkdocs-rss-plugin
 # only=main
 
 # Python versions
-sonar.python.version=3.8, 3.9, 3.10, 3.11, 3.12
+sonar.python.version=3.10, 3.11, 3.12
 
 # Path is relative to the sonar-project.properties file. Replace "\" by "/" on Windows.
 sonar.sources=mkdocs_rss_plugin

tests/test_build.py

@@ -699,16 +699,20 @@ def test_json_feed_validation(self):
             self.assertIsNone(cli_result.exception)
 
             # created items
-            with Path(tmpdirname).joinpath(OUTPUT_JSON_FEED_CREATED).open(
-                "r", encoding="UTF-8"
-            ) as in_json:
+            with (
+                Path(tmpdirname)
+                .joinpath(OUTPUT_JSON_FEED_CREATED)
+                .open("r", encoding="UTF-8") as in_json
+            ):
                 json_feed_created_data = json.load(in_json)
             jsonfeed.Feed.parse(json_feed_created_data)
 
             # updated items
-            with Path(tmpdirname).joinpath(OUTPUT_JSON_FEED_UPDATED).open(
-                "r", encoding="UTF-8"
-            ) as in_json:
+            with (
+                Path(tmpdirname)
+                .joinpath(OUTPUT_JSON_FEED_UPDATED)
+                .open("r", encoding="UTF-8") as in_json
+            ):
                 json_feed_updated_data = json.load(in_json)
             jsonfeed.Feed.parse(json_feed_updated_data)