Merge pull request #118 from scrapy/black

Add black check

Author: wRAR

.github/workflows/checks.yml

@@ -7,6 +7,9 @@ jobs:
     strategy:
       matrix:
         include:
+        - python-version: 3
+          env:
+            TOXENV: black
         - python-version: 3
           env:
             TOXENV: flake8

pyproject.toml

@@ -0,0 +1,3 @@
+[tool.black]
+line-length = 99
+exclude = 'cssselect/|tests/'

setup.py

@@ -2,45 +2,47 @@
 
 import re
 import os.path
+
 try:
     from setuptools import setup
-    extra_kwargs = {'test_suite': 'cssselect.tests'}
+
+    extra_kwargs = {"test_suite": "cssselect.tests"}
 except ImportError:
     from distutils.core import setup
+
     extra_kwargs = {}
 
 
 ROOT = os.path.dirname(__file__)
-README = open(os.path.join(ROOT, 'README.rst')).read()
-INIT_PY = open(os.path.join(ROOT, 'cssselect', '__init__.py')).read()
+README = open(os.path.join(ROOT, "README.rst")).read()
+INIT_PY = open(os.path.join(ROOT, "cssselect", "__init__.py")).read()
 VERSION = re.search("VERSION = '([^']+)'", INIT_PY).group(1)
 
 
 setup(
-    name='cssselect',
+    name="cssselect",
     version=VERSION,
-    author='Ian Bicking',
-    author_email='[email protected]',
-    maintainer='Paul Tremberth',
-    maintainer_email='[email protected]',
-    description=
-        'cssselect parses CSS3 Selectors and translates them to XPath 1.0',
+    author="Ian Bicking",
+    author_email="[email protected]",
+    maintainer="Paul Tremberth",
+    maintainer_email="[email protected]",
+    description="cssselect parses CSS3 Selectors and translates them to XPath 1.0",
     long_description=README,
-    url='https://github.com/scrapy/cssselect',
-    license='BSD',
-    packages=['cssselect'],
-    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*',
+    url="https://github.com/scrapy/cssselect",
+    license="BSD",
+    packages=["cssselect"],
+    python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",
     classifiers=[
-        'Development Status :: 4 - Beta',
-        'Intended Audience :: Developers',
-        'License :: OSI Approved :: BSD License',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7'
+        "Development Status :: 4 - Beta",
+        "Intended Audience :: Developers",
+        "License :: OSI Approved :: BSD License",
+        "Programming Language :: Python :: 2",
+        "Programming Language :: Python :: 2.7",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.4",
+        "Programming Language :: Python :: 3.5",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
     ],
     **extra_kwargs
 )

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = flake8,security,py
+envlist = black,flake8,security,py
 
 [testenv]
 basepython = python3
@@ -8,6 +8,12 @@ deps=
 commands =
     py.test --cov-report term --cov=cssselect
 
+[testenv:black]
+deps =
+    black==21.6b0
+commands =
+    black --check {posargs: cssselect setup.py tests}
+
 [testenv:flake8]
 deps =
     flake8==3.9.2