chore: remove Python 3.8 support

Removes support for Python 3.8, which became EOL on 2024-10-07:

https://peps.python.org/pep-0569/

.github/workflows/ci.yaml

@@ -10,7 +10,7 @@ jobs:
     name: "Unit Tests"
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
         runs-on: ["ubuntu-22.04", "windows-2022", "macos-13"]
     runs-on: ${{ matrix.runs-on }}
     steps:

pyproject.toml

@@ -14,9 +14,10 @@ classifiers = [
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "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",
     "Programming Language :: Python",
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Topic :: Software Development :: Quality Assurance"
@@ -33,7 +34,7 @@ maintainers = [
 ]
 name = "ssort"
 readme = "README.rst"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 
 [project.license]
 text = "MIT"

tests/test_bindings.py

@@ -6,13 +6,6 @@
 
 from ssort._bindings import get_bindings
 
-# Most walrus operator syntax is valid in 3.8. Only use this decorator for the
-# rare cases where it is not.
-walrus_operator = pytest.mark.skipif(
-    sys.version_info < (3, 9),
-    reason="some walrus operator syntax is not valid prior to python 3.9",
-)
-
 
 match_statement = pytest.mark.skipif(
     sys.version_info < (3, 10),
@@ -96,7 +89,6 @@ def function(
     ]
 
 
-@walrus_operator
 def test_function_def_bindings_walrus_decorator():
     node = _parse(
         """
@@ -165,7 +157,6 @@ async def function(
     ]
 
 
-@walrus_operator
 def test_async_function_def_bindings_walrus_decorator():
     node = _parse(
         """
@@ -201,7 +192,6 @@ def b(self):
     assert list(get_bindings(node)) == ["ClassName"]
 
 
-@walrus_operator
 def test_class_def_bindings_walrus_decorator():
     node = _parse(
         """
@@ -1004,17 +994,11 @@ def test_set_bindings_unpack():
     assert list(get_bindings(node)) == []
 
 
-@walrus_operator
 def test_set_bindings_walrus():
     node = _parse("{a, {b := genb()}, c}")
     assert list(get_bindings(node)) == ["b"]
 
 
-def test_set_bindings_walrus_py38():
-    node = _parse("{a, {(b := genb())}, c}")
-    assert list(get_bindings(node)) == ["b"]
-
-
 def test_set_bindings_walrus_unpack():
     node = _parse("{a, b, *(rest := other)}")
     assert list(get_bindings(node)) == ["rest"]

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py38,py39,py310,py311,py312,black,isort,ssort,pyflakes,pylint,mypy
+envlist = py39,py310,py311,py312,black,isort,ssort,pyflakes,pylint,mypy
 isolated_build = true
 
 [testenv]