Merge https://github.com/jaraco/skeleton

# Conflicts:
#	setup.cfg

.coveragerc

@@ -7,3 +7,7 @@ disable_warnings =
 
 [report]
 show_missing = True
+exclude_also =
+	# jaraco/skeleton#97
+	@overload
+	if TYPE_CHECKING:

.readthedocs.yaml

@@ -7,6 +7,6 @@ python:
 
 # required boilerplate readthedocs/readthedocs.org#10401
 build:
-  os: ubuntu-22.04
+  os: ubuntu-lts-latest
   tools:
-    python: "3"
+    python: latest

README.rst

@@ -14,7 +14,7 @@
 .. image:: https://readthedocs.org/projects/cssutils/badge/?version=latest
    :target: https://cssutils.readthedocs.io/en/latest/?badge=latest
 
-.. image:: https://img.shields.io/badge/skeleton-2023-informational
+.. image:: https://img.shields.io/badge/skeleton-2024-informational
    :target: https://blog.jaraco.com/skeleton
 
 .. image:: https://tidelift.com/badges/package/pypi/cssutils

ruff.toml

@@ -21,5 +21,7 @@ ignore = [
 ]
 
 [format]
+# Enable preview, required for quote-style = "preserve"
+preview = true
 # https://docs.astral.sh/ruff/settings/#format-quote-style
 quote-style = "preserve"

setup.cfg

@@ -19,18 +19,13 @@ classifiers =
 keywords = CSS, Cascading Style Sheets, CSSParser, DOM Level 2 Stylesheets, DOM Level 2 CSS
 
 [options]
-packages = find_namespace:
 include_package_data = true
 python_requires = >=3.8
 install_requires =
 	importlib_metadata; python_version < "3.8"
 
 [options.packages.find]
 exclude =
-	build*
-	dist*
-	docs*
-	tests*
 	examples*
 	sheets*
 	tools*