lint improvements for comments whitespace, import order, is None and …

examples/bootstrap4/app.py

@@ -5,8 +5,8 @@
 from flask_wtf import FlaskForm, CSRFProtect
 from wtforms.validators import DataRequired, Length, Regexp
 from wtforms.fields import *
-from flask_bootstrap import Bootstrap4, SwitchField
 from flask_sqlalchemy import SQLAlchemy
+from flask_bootstrap import Bootstrap4, SwitchField
 
 app = Flask(__name__)
 app.secret_key = 'dev'
@@ -34,6 +34,7 @@
 
 class ExampleForm(FlaskForm):
     """An example form that contains all the supported bootstrap style form fields."""
+
     date = DateField(description="We'll never share your email with anyone else.")  # add help text with `description`
     datetime = DateTimeField(render_kw={'placeholder': 'this is a placeholder'})  # add HTML attribute with `render_kw`
     datetime_local = DateTimeLocalField()
@@ -52,8 +53,8 @@ class ExampleForm(FlaskForm):
     select = SelectField(choices=[('dog', 'Dog'), ('cat', 'Cat'), ('bird', 'Bird'), ('alien', 'Alien')])
     select_multiple = SelectMultipleField(choices=[('dog', 'Dog'), ('cat', 'Cat'), ('bird', 'Bird'), ('alien', 'Alien')])
     bio = TextAreaField()
-    search = SearchField() # will autocapitalize on mobile
-    title = StringField() # will not autocapitalize on mobile
+    search = SearchField()  # will autocapitalize on mobile
+    title = StringField()  # will not autocapitalize on mobile
     secret = PasswordField()
     remember = BooleanField('Remember me')
     submit = SubmitField()
@@ -96,7 +97,8 @@ class ContactForm(FlaskForm):
 
 class BootswatchForm(FlaskForm):
     """Form to test Bootswatch."""
-    #DO NOT EDIT! Use list-bootswatch.py to generate the Radiofield below.
+
+    # DO NOT EDIT! Use list-bootswatch.py to generate the Radiofield below.
     theme_name = RadioField(
         default='default',
         choices=[
@@ -208,7 +210,7 @@ def test_bootswatch():
             app.config['BOOTSTRAP_BOOTSWATCH_THEME'] = form.theme_name.data
         flash(f'Render style has been set to {form.theme_name.data}.')
     else:
-        if app.config['BOOTSTRAP_BOOTSWATCH_THEME'] != None:
+        if app.config['BOOTSTRAP_BOOTSWATCH_THEME'] is not None:
             form.theme_name.data = app.config['BOOTSTRAP_BOOTSWATCH_THEME']
     return render_template('bootswatch.html', form=form)
 

examples/bootstrap5/app.py

@@ -5,8 +5,8 @@
 from flask_wtf import FlaskForm, CSRFProtect
 from wtforms.validators import DataRequired, Length, Regexp
 from wtforms.fields import *
-from flask_bootstrap import Bootstrap5, SwitchField
 from flask_sqlalchemy import SQLAlchemy
+from flask_bootstrap import Bootstrap5, SwitchField
 
 app = Flask(__name__)
 app.secret_key = 'dev'
@@ -34,6 +34,7 @@
 
 class ExampleForm(FlaskForm):
     """An example form that contains all the supported bootstrap style form fields."""
+
     date = DateField(description="We'll never share your email with anyone else.")  # add help text with `description`
     datetime = DateTimeField(render_kw={'placeholder': 'this is a placeholder'})  # add HTML attribute with `render_kw`
     datetime_local = DateTimeLocalField()
@@ -52,8 +53,8 @@ class ExampleForm(FlaskForm):
     select = SelectField(choices=[('dog', 'Dog'), ('cat', 'Cat'), ('bird', 'Bird'), ('alien', 'Alien')])
     select_multiple = SelectMultipleField(choices=[('dog', 'Dog'), ('cat', 'Cat'), ('bird', 'Bird'), ('alien', 'Alien')])
     bio = TextAreaField()
-    search = SearchField() # will autocapitalize on mobile
-    title = StringField() # will not autocapitalize on mobile
+    search = SearchField()  # will autocapitalize on mobile
+    title = StringField()  # will not autocapitalize on mobile
     secret = PasswordField()
     remember = BooleanField('Remember me')
     submit = SubmitField()
@@ -96,7 +97,8 @@ class ContactForm(FlaskForm):
 
 class BootswatchForm(FlaskForm):
     """Form to test Bootswatch."""
-    #DO NOT EDIT! Use list-bootswatch.py to generate the Radiofield below.
+
+    # DO NOT EDIT! Use list-bootswatch.py to generate the Radiofield below.
     theme_name = RadioField(
         default='default',
         choices=[
@@ -212,7 +214,7 @@ def test_bootswatch():
             app.config['BOOTSTRAP_BOOTSWATCH_THEME'] = form.theme_name.data
         flash(f'Render style has been set to {form.theme_name.data}.')
     else:
-        if app.config['BOOTSTRAP_BOOTSWATCH_THEME'] != None:
+        if app.config['BOOTSTRAP_BOOTSWATCH_THEME'] is not None:
             form.theme_name.data = app.config['BOOTSTRAP_BOOTSWATCH_THEME']
     return render_template('bootswatch.html', form=form)
 

flask_bootstrap/__init__.py

@@ -239,6 +239,7 @@ def create_app():
     .. versionchanged:: 2.0.0
        Move common logic to base class ``_Bootstrap``.
     """
+
     bootstrap_version = '4.6.1'
     jquery_version = '3.5.1'
     popper_version = '1.16.1'
@@ -276,6 +277,7 @@ def create_app():
 
     .. versionadded:: 2.0.0
     """
+
     bootstrap_version = '5.3.2'
     popper_version = '2.11.8'
     icons_version = '1.11.3'

tests/test_bootstrap4/test_bootstrap.py

@@ -15,11 +15,11 @@ def test_deprecate_bootstrap_class(self):
 
         app = Flask(__name__)
         with pytest.warns(UserWarning):
-            bootstrap = Bootstrap(app)  # noqa: F841
+            _ = Bootstrap(app)
 
     def test_deprecate_bootstrap_template_path(self, app, client):
         @app.route('/test')
-        def foo():
+        def test_render_template_string():
             return render_template_string('''
                     {% from 'bootstrap/utils.html' import render_icon %}
                     {{ render_icon('heart') }}

tests/test_bootstrap4/test_render_breadcrumb_item.py

@@ -3,17 +3,17 @@
 
 def test_render_breadcrumb_item_active(app, client):
     @app.route('/not_active_item')
-    def foo():
+    def item_foo():
         return render_template_string('''
                 {% from 'bootstrap4/nav.html' import render_breadcrumb_item %}
-                {{ render_breadcrumb_item('bar', 'Bar') }}
+                {{ render_breadcrumb_item('item_bar', 'Bar') }}
                 ''')
 
     @app.route('/active_item')
-    def bar():
+    def item_bar():
         return render_template_string('''
                 {% from 'bootstrap4/nav.html' import render_breadcrumb_item %}
-                {{ render_breadcrumb_item('bar', 'Bar') }}
+                {{ render_breadcrumb_item('item_bar', 'Bar') }}
                 ''')
 
     response = client.get('/not_active_item')

tests/test_bootstrap4/test_render_icon.py

@@ -154,10 +154,18 @@ def test_render_icon_font_config(app, client):
     def icon():
         return render_template_string('''
         {% from 'bootstrap4/utils.html' import render_icon %}
+            {{ bootstrap.load_icon_font_css() }}
             {{ render_icon('heart', font=True) }}
         ''')
 
     response = client.get('/icon')
     data = response.get_data(as_text=True)
     assert 'size: 100;' in data
     assert 'text-success' in data
+
+    # complete test coverage for bootstrap.load_icon_font_css()
+    app.config['BOOTSTRAP_SERVE_LOCAL'] = not app.config['BOOTSTRAP_SERVE_LOCAL']
+    response = client.get('/icon')
+    data = response.get_data(as_text=True)
+    assert 'size: 100;' in data
+    assert 'text-success' in data

tests/test_bootstrap4/test_render_nav_item.py

@@ -3,17 +3,17 @@
 
 def test_render_nav_item_active(app, client):
     @app.route('/active')
-    def foo():
+    def item_foo():
         return render_template_string('''
                 {% from 'bootstrap4/nav.html' import render_nav_item %}
-                {{ render_nav_item('foo', 'Foo') }}
+                {{ render_nav_item('item_foo', 'Foo') }}
                 ''')
 
     @app.route('/not_active')
-    def bar():
+    def item_bar():
         return render_template_string('''
                 {% from 'bootstrap4/nav.html' import render_nav_item %}
-                {{ render_nav_item('foo', 'Foo') }}
+                {{ render_nav_item('item_foo', 'Foo') }}
                 ''')
 
     response = client.get('/active')

tests/test_bootstrap4/test_render_pager.py

@@ -12,7 +12,7 @@ class Message(db.Model):
     def test():
         db.drop_all()
         db.create_all()
-        for i in range(100):
+        for _ in range(100):
             msg = Message()
             db.session.add(msg)
         db.session.commit()

tests/test_bootstrap4/test_render_pagination.py

@@ -12,7 +12,7 @@ class Message(db.Model):
     def test():
         db.drop_all()
         db.create_all()
-        for i in range(100):  # noqa: F841
+        for _ in range(100):
             msg = Message()
             db.session.add(msg)
         db.session.commit()

tests/test_bootstrap5/test_pagination.py

@@ -12,7 +12,7 @@ class Message(db.Model):
     def test():
         db.drop_all()
         db.create_all()
-        for i in range(100):  # noqa: F841
+        for _ in range(100):
             msg = Message()
             db.session.add(msg)
         db.session.commit()