Reformat with black

https://github.com/python/black

examples/javascript/js_example/views.py

@@ -3,14 +3,14 @@ from flask import jsonify, render_template, request
 from js_example import app
 
 
-@app.route('/', defaults={'js': 'plain'})
-@app.route('/<any(plain, jquery, fetch):js>')
+@app.route("/", defaults={"js": "plain"})
+@app.route("/<any(plain, jquery, fetch):js>")
 def index(js):
-    return render_template('{0}.html'.format(js), js=js)
+    return render_template("{0}.html".format(js), js=js)
 
 
-@app.route('/add', methods=['POST'])
+@app.route("/add", methods=["POST"])
 def add():
-    a = request.form.get('a', 0, type=float)
-    b = request.form.get('b', 0, type=float)
+    a = request.form.get("a", 0, type=float)
+    b = request.form.get("b", 0, type=float)
     return jsonify(result=a + b)

examples/javascript/setup.py

@@ -2,29 +2,21 @@ import io
 
 from setuptools import find_packages, setup
 
-with io.open('README.rst', 'rt', encoding='utf8') as f:
+with io.open("README.rst", "rt", encoding="utf8") as f:
     readme = f.read()
 
 setup(
-    name='js_example',
-    version='1.0.0',
-    url='http://flask.pocoo.org/docs/patterns/jquery/',
-    license='BSD',
-    maintainer='Pallets team',
-    maintainer_email='contact@palletsprojects.com',
-    description='Demonstrates making Ajax requests to Flask.',
+    name="js_example",
+    version="1.0.0",
+    url="http://flask.pocoo.org/docs/patterns/jquery/",
+    license="BSD",
+    maintainer="Pallets team",
+    maintainer_email="contact@palletsprojects.com",
+    description="Demonstrates making Ajax requests to Flask.",
     long_description=readme,
     packages=find_packages(),
     include_package_data=True,
     zip_safe=False,
-    install_requires=[
-        'flask',
-    ],
-    extras_require={
-        'test': [
-            'pytest',
-            'coverage',
-            'blinker',
-        ],
-    },
+    install_requires=["flask"],
+    extras_require={"test": ["pytest", "coverage", "blinker"]},
 )

examples/javascript/tests/conftest.py

@@ -3,7 +3,7 @@ import pytest
 from js_example import app
 
 
-@pytest.fixture(name='app')
+@pytest.fixture(name="app")
 def fixture_app():
     app.testing = True
     yield app

examples/javascript/tests/test_js_example.py

@@ -3,12 +3,15 @@ import pytest
 from flask import template_rendered
 
 
-@pytest.mark.parametrize(('path', 'template_name'), (
-    ('/', 'plain.html'),
-    ('/plain', 'plain.html'),
-    ('/fetch', 'fetch.html'),
-    ('/jquery', 'jquery.html'),
-))
+@pytest.mark.parametrize(
+    ("path", "template_name"),
+    (
+        ("/", "plain.html"),
+        ("/plain", "plain.html"),
+        ("/fetch", "fetch.html"),
+        ("/jquery", "jquery.html"),
+    ),
+)
 def test_index(app, client, path, template_name):
     def check(sender, template, context):
         assert template.name == template_name
@@ -17,12 +20,9 @@ def test_index(app, client, path, template_name):
         client.get(path)
 
 
-@pytest.mark.parametrize(('a', 'b', 'result'), (
-    (2, 3, 5),
-    (2.5, 3, 5.5),
-    (2, None, 2),
-    (2, 'b', 2),
-))
+@pytest.mark.parametrize(
+    ("a", "b", "result"), ((2, 3, 5), (2.5, 3, 5.5), (2, None, 2), (2, "b", 2))
+)
 def test_add(client, a, b, result):
-    response = client.post('/add', data={'a': a, 'b': b})
-    assert response.get_json()['result'] == result
+    response = client.post("/add", data={"a": a, "b": b})
+    assert response.get_json()["result"] == result