chore: add Python 3.14, drop 3.9

Author: gforcada

.github/workflows/testing.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: "ubuntu-latest"
     strategy:
       matrix:
-        python-version: ["3.13", "3.12", "3.11", "3.10", 3.9, pypy-3.9]
+        python-version: ["3.14", "3.13", "3.12", "3.11", "3.10", pypy-3.9]
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python

pyproject.toml

@@ -12,7 +12,7 @@ description = "flake8 plugin that integrates isort"
 keywords = ["pep8", "flake8", "python", "isort", "imports"]
 license = {file = "LICENSE"}
 readme = "README.rst"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 classifiers = [
         "Development Status :: 5 - Production/Stable",
         "Environment :: Console",
@@ -24,11 +24,11 @@ classifiers = [
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: 3.13",
+        "Programming Language :: Python :: 3.14",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
         "Topic :: Software Development",

tox.ini

@@ -4,11 +4,11 @@ envlist =
     format
     lint
     coverage
-    py39
     py310
     py311
     py312
     py313
+    py314
     pypy3
 
 [testenv:test]