Drop Python 3.8 (#323)

# Problem

Python 3.8 reached end-of-life on October 7th, 2024 (see devguide.python.org, Status of Python Versions, [Unsupported versions](https://devguide.python.org/versions/#:~:text=Release%20manager-,3.8,-PEP%20569))

# Changes

## Drop Python 3.8

## Ruff fixes via ruff 0.8.4

```console
ruff check --select ALL . --fix --unsafe-fixes --preview --show-fixes; ruff format .
```

## cihai: Bump minimum version to 0.35.0 (#323)

Requires Python 3.9.

Updates unihan-etl to 0.37.0, which also requires Python 3.9.

.github/workflows/tests.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.13']
+        python-version: ['3.9', '3.13']
     steps:
       - uses: actions/checkout@v4
 

CHANGES

@@ -21,6 +21,30 @@ You can test the unpublished version of cihai-cli before its released, see
 
 <!-- Maintainers, insert changes / features for the next release here -->
 
+### Breaking changes
+
+- Drop Python 3.8 (#323)
+
+  The minimum version of Python in this and future releases is Python 3.9.
+
+  Python 3.8 reached end-of-life status on October 7th, 2024 (see PEP 569).
+
+- cihai: Bump minimum version to 0.35.0 (#323)
+
+  Requires Python 3.9.
+
+  Updates unihan-etl to 0.37.0, which also requires Python 3.9.
+
+### Development
+
+- Aggressive automated lint fixes via `ruff` (#323)
+
+  via ruff v0.8.4, all automated lint fixes, including unsafe and previews were applied for Python 3.9:
+
+  ```sh
+  ruff check --select ALL . --fix --unsafe-fixes --preview --show-fixes; ruff format .
+  ```
+
 ## cihai-cli 0.29.0 (2024-11-26)
 
 _Maintenance only, no bug fixes, or new features_

README.md

@@ -133,7 +133,7 @@ $ cd cihai-cli
 - [Quickstart](https://cihai-cli.git-pull.com/quickstart.html)
 - Python [API](https://cihai-cli.git-pull.com/api.html)
 - [2017 roadmap](https://cihai.git-pull.com/design-and-planning/2017/spec.html)
-- Python support: >= 3.8, pypy
+- Python support: >= 3.9, pypy
 - Source: <https://github.com/cihai/cihai-cli>
 - Docs: <https://cihai-cli.git-pull.com>
 - Changelog: <https://cihai-cli.git-pull.com/history.html>

docs/conf.py

@@ -21,7 +21,7 @@
 sys.path.insert(0, str(cwd / "_ext"))
 
 # package data
-about: t.Dict[str, str] = {}
+about: dict[str, str] = {}
 with (src_root / "cihai_cli" / "__about__.py").open() as fp:
     exec(fp.read(), about)
 
@@ -71,8 +71,8 @@
 html_css_files = ["css/custom.css"]
 html_favicon = "_static/favicon.ico"
 html_theme = "furo"
-html_theme_path: t.List[str] = []
-html_theme_options: t.Dict[str, t.Union[str, t.List[t.Dict[str, str]]]] = {
+html_theme_path: list[str] = []
+html_theme_options: dict[str, t.Union[str, list[dict[str, str]]]] = {
     "light_logo": "img/cihai.svg",
     "dark_logo": "img/cihai.svg",
     "footer_icons": [
@@ -147,7 +147,7 @@
 }
 
 
-def linkcode_resolve(domain: str, info: t.Dict[str, str]) -> t.Union[None, str]:
+def linkcode_resolve(domain: str, info: dict[str, str]) -> t.Union[None, str]:
     """
     Determine the URL corresponding to Python object.
 

pyproject.toml

@@ -2,7 +2,7 @@
 name = "cihai-cli"
 version = "0.29.0"
 description = "Command line frontend for the cihai CJK language library"
-requires-python = ">=3.8,<4.0"
+requires-python = ">=3.9,<4.0"
 license = { text = "MIT" }
 authors = [
   {name = "Tony Narlock", email = "tony@git-pull.com"}
@@ -14,7 +14,6 @@ classifiers = [
   "Intended Audience :: Developers",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
@@ -53,7 +52,7 @@ include = [
   { path = "tests", format = "sdist" },
 ]
 dependencies = [
-  "cihai~=0.34.0",
+  "cihai~=0.35.0",
   "PyYAML"
 ]
 
@@ -141,11 +140,12 @@ requires = ["hatchling"]
 build-backend = "hatchling.build"
 
 [tool.mypy]
+strict = true
+python_version = "3.9"
 files = [
   "src/",
   "tests/",
 ]
-strict = true
 
 [[tool.mypy.overrides]]
 module = [
@@ -154,7 +154,7 @@ module = [
 ignore_missing_imports = true
 
 [tool.ruff]
-target-version = "py38"
+target-version = "py39"
 
 [tool.ruff.lint]
 select = [

src/cihai_cli/cli.py

@@ -79,7 +79,7 @@ class CLILoadNamespace(argparse.Namespace):
     log_file: t.Optional[str]
 
 
-def cli(_args: t.Optional[t.List[str]] = None) -> None:
+def cli(_args: t.Optional[list[str]] = None) -> None:
     """Retrieve CJK information via CLI.
 
     For help and example usage, see documentation:

tests/conftest.py

@@ -39,11 +39,11 @@ def zip_path(tmp_path: pathlib.Path) -> pathlib.Path:
 @pytest.fixture
 def zip_file(zip_path: pathlib.Path, fixture_path: pathlib.Path) -> zipfile.ZipFile:
     """Create and return ZipFile."""
-    _files = []
+    files = []
     for f in UNIHAN_FILES:
-        _files += [fixture_path / f]
+        files += [fixture_path / f]
     zf = zipfile.ZipFile(zip_path, "a")
-    for _f in _files:
+    for _f in files:
         zf.write(_f, _f.name)
     zf.close()
     return zf