Modernize: use pyproject.toml

 * Moving as much config as possible to `pyproject.toml`.
 * Migrating project to use `src` layout.

.pre-commit-config.yaml

@@ -35,7 +35,7 @@ repos:
       - id: mypy
         name: mypy static type check
         entry: mypy
-        args: [ --show-error-codes, flake8_picky_parentheses, tests ]
+        args: [ --show-error-codes, src, tests ]
         'types_or': [ python, pyi ]
         language: system
         pass_filenames: false

pyproject.toml

@@ -0,0 +1,72 @@
+[project]
+name = "flake8-picky-parentheses"
+description = "flake8 plugin to nitpick about parenthesis, brackets, and braces"
+authors = [
+    { name = "Ivan Prychantovskyi" },
+    { name = "Rouven Bauer" },
+]
+readme = "README.md"
+dependencies = [
+    "flake8~=3.7",
+]
+requires-python = ">=3.7"
+classifiers = [
+    "Framework :: Flake8",
+    "Environment :: Console",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: Apache Software License",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Topic :: Software Development :: Quality Assurance",
+]
+keywords = [
+    "flake8",
+    "plugin",
+    "redundant",
+    "superfluous",
+    "extraneous",
+    "unnecessary",
+    "parentheses",
+    "parenthesis",
+    "parens",
+    "brackets",
+    "linter",
+    "linting",
+    "codestyle",
+    "code style",
+]
+license = {text = "Apache License 2.0"}
+dynamic = ["version"]
+
+[project.urls]
+"Homepage" = "https://github.com/robsdedude/flake8-picky-parentheses"
+"Issue Tracker" = "https://github.com/robsdedude/flake8-picky-parentheses/issues"
+"Source Code" = "https://github.com/robsdedude/flake8-picky-parentheses"
+"Changelog" = "https://github.com/robsdedude/flake8-picky-parentheses/blob/master/CHANGELOG.md"
+
+[project.entry-points."flake8.extension"]
+"PAR0" = "flake8_picky_parentheses:PluginRedundantParentheses"
+"PAR1" = "flake8_picky_parentheses:PluginBracketsPosition"
+
+[build-system]
+requires = ["setuptools>=68.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools.dynamic]
+version = { attr = "flake8_picky_parentheses.__version__" }
+
+[tool.isort]
+multi_line_output = 3
+include_trailing_comma = true
+force_grid_wrap = 2
+use_parentheses = true
+ensure_newline_before_comments = true
+order_by_type = false
+remove_redundant_aliases = true
+force_sort_within_sections = true

setup.cfg

@@ -1,13 +1,5 @@
-[isort]
-multi_line_output=3
-include_trailing_comma=true
-force_grid_wrap=2
-use_parentheses=true
-ensure_newline_before_comments=true
-order_by_type=false
-remove_redundant_aliases=true
-force_sort_within_sections=true
-
+# flake8 not supporting pyproject.toml
+# https://github.com/PyCQA/flake8/issues/234
 [flake8]
 inline-quotes=double
 ignore=D100,D101,D102,D103,D104,D105,D106,D107,W503

setup.py

@@ -2,59 +2,4 @@
 
 from setuptools import setup
 
-from flake8_picky_parentheses import __version__ as version
-
-with open("README.md", "r") as fd:
-    long_description = fd.read()
-
-
-install_requires = [
-    "flake8>=3.7",
-]
-
-github_project_url = "https://github.com/robsdedude/flake8-picky-parentheses"
-
-setup(
-    name="flake8-picky-parentheses",
-    version=version,
-    description="flake8 plugin to nitpick about parenthesis, brackets, "
-                "and braces",
-    long_description=long_description,
-    long_description_content_type="text/markdown",
-    author="Ivan Prychantovskyi, Rouven Bauer",
-    url=github_project_url,
-    project_urls={
-        "Issue Tracker": f"{github_project_url}/issues",
-        "Source Code": github_project_url,
-        "Changelog": f"{github_project_url}/blob/master/CHANGELOG.md",
-    },
-    download_url="https://pypi.python.org/pypi/flake8-picky-parentheses",
-    packages=["flake8_picky_parentheses"],
-    entry_points={
-        "flake8.extension": [
-            "PAR0 = flake8_picky_parentheses:PluginRedundantParentheses",
-            "PAR1 = flake8_picky_parentheses:PluginBracketsPosition"
-        ],
-    },
-    classifiers=[
-        "Framework :: Flake8",
-        "Environment :: Console",
-        "Intended Audience :: Developers",
-        "License :: OSI Approved :: Apache Software License",
-        "Programming Language :: Python",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
-        "Programming Language :: Python :: 3.10",
-        "Programming Language :: Python :: 3.11",
-        "Topic :: Software Development :: Libraries :: Python Modules",
-        "Topic :: Software Development :: Quality Assurance",
-    ],
-    license="Apache License 2.0",
-    keywords="flake8, plugin, redundant, superfluous, extraneous, "
-             "unnecessary, parentheses, parenthesis, parens, brackets, "
-             "linter, linting, codestyle, code style",
-    install_requires=install_requires,
-    python_requires=">=3.7",
-)
+setup()

tox.ini

@@ -1,10 +1,8 @@
 [tox]
-envlist = py37,py38,py39,py310
+envlist = py37,py38,py39,py310,py311
 
 [testenv]
 # install pytest in the virtualenv where commands will be executed
 deps = pytest
 commands =
-    # NOTE: you can run any command line tool here - not just tests
-    pytest tests/test_redundant_parentheses.py
-    pytest tests/test_brackets_position.py
+    pytest tests