Tidy up some of the linter objections

Author: Mark Gibbs

demo/demo/dash_apps.py

@@ -12,34 +12,29 @@
 from django_plotly_dash import DjangoDash
 
 #from .urls import app_name
-app_name ="DPD demo application"
+app_name = "DPD demo application"
 
 dashboard_name1 = 'dash_example_1'
 dash_example1 = DjangoDash(name=dashboard_name1,
-                 serve_locally=True,
-                 app_name=app_name
-                 )
+                           serve_locally=True,
+                           app_name=app_name
+                          )
 
 # Below is a random Dash app.
 # I encountered no major problems in using Dash this way. I did encounter problems but it was because
 # I was using e.g. Bootstrap inconsistenyly across the dash layout. Staying consistent worked fine for me.
 dash_example1.layout = html.Div(id='main',
-                      children=[
-
-                                 html.Div([
-                                            dcc.Dropdown(
-                                                id='my-dropdown1',
-                                                options=[
-                                                    {'label': 'New York City', 'value': 'NYC'},
-                                                    {'label': 'Montreal', 'value': 'MTL'},
-                                                    {'label': 'San Francisco', 'value': 'SF'}
-                                                ],
-                                                value='NYC',
-                                                className='col-md-12',
-
-                                            ),
-                                            html.Div(id='test-output-div')
-                                        ]),
+                                children=[
+                                html.Div([dcc.Dropdown(id='my-dropdown1',
+                                                       options=[{'label': 'New York City', 'value': 'NYC'},
+                                                                {'label': 'Montreal', 'value': 'MTL'},
+                                                                {'label': 'San Francisco', 'value': 'SF'}
+                                                               ],
+                                                       value='NYC',
+                                                       className='col-md-12',
+                                                      ),
+                                          html.Div(id='test-output-div')
+                                         ]),
 
                                     dcc.Dropdown(
                                         id='my-dropdown2',
@@ -59,32 +54,31 @@
 @dash_example1.expanded_callback(
     dash.dependencies.Output('test-output-div', 'children'),
     [dash.dependencies.Input('my-dropdown1', 'value')])
-def callback_test(*args, **kwargs):
+def callback_test(*args, **kwargs): #pylint: disable=unused-argument
+    'Callback to generate test data on each change of the dropdown'
 
     # Creating a random Graph from a Plotly example:
     N = 500
     random_x = np.linspace(0, 1, N)
     random_y = np.random.randn(N)
 
     # Create a trace
-    trace = go.Scatter(
-        x = random_x,
-        y = random_y
-    )
+    trace = go.Scatter(x=random_x,
+                       y=random_y)
 
     data = [trace]
 
     layout = dict(title='',
-               yaxis = dict(zeroline = False, title='Total Expense (£)',),
-               xaxis = dict(zeroline = False, title='Date', tickangle=0),
-               margin=dict(t=20, b=50, l=50, r=40),
-               height=350,
-              )
+                  yaxis=dict(zeroline=False, title='Total Expense (£)',),
+                  xaxis=dict(zeroline=False, title='Date', tickangle=0),
+                  margin=dict(t=20, b=50, l=50, r=40),
+                  height=350,
+                 )
 
 
     fig = dict(data=data, layout=layout)
     line_graph = dcc.Graph(id='line-area-graph2', figure=fig, style={'display':'inline-block', 'width':'100%',
-                                                                 'height': '100%;'} )
+                                                                     'height':'100%;'} )
     children = [line_graph]
 
     return children

demo/demo/views.py

@@ -4,10 +4,13 @@
 
 from django.shortcuts import render
 
-def dash_example_1_view(request, template_name="demo_six.html",**kwargs):
-    
+#pylint: disable=unused-argument
+
+def dash_example_1_view(request, template_name="demo_six.html", **kwargs):
+    'Example view that inserts content into the dash context passed to the dash application'
+
     context = {}
-    
+
     # create some context to send over to Dash:
     dash_context = request.session.get("django_plotly_dash", dict())
     dash_context['django_to_dash_context'] = "I am Dash receiving context from Django"