Clean up all whitespace throughout project (#5578)

* Remove trailing whitespace from lines
* Remove trailing nad leading whitespace from files

Allows for cleaner diffs in future changes. For editors that
automatically clean up whitespace on save, will avoid unrelated line
changes in diffs.

.editorconfig

@@ -0,0 +1,7 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true

.gitignore

@@ -13,6 +13,7 @@
 MANIFEST
 coverage.*
 
+!.editorconfig
 !.gitignore
 !.travis.yml
 !.isort.cfg

.tx/config

@@ -7,4 +7,3 @@ file_filter = rest_framework/locale/<lang>/LC_MESSAGES/django.po
 source_file = rest_framework/locale/en_US/LC_MESSAGES/django.po
 source_lang = en_US
 type = PO
-

docs/api-guide/caching.md

@@ -1,6 +1,6 @@
 # Caching
 
-> A certain woman had a very sharp conciousness but almost no 
+> A certain woman had a very sharp conciousness but almost no
 > memory ... She remembered enough to work, and she worked hard.
 > - Lydia Davis
 
@@ -22,9 +22,9 @@ from rest_framework.views import APIView
 from rest_framework import viewsets
 
 class UserViewSet(viewsets.Viewset):
-    
+
     # Cache requested url for each user for 2 hours
-    @method_decorator(cache_page(60*60*2))  
+    @method_decorator(cache_page(60*60*2))
     @method_decorator(vary_on_cookie)
     def list(self, request, format=None):
         content = {
@@ -35,7 +35,7 @@ class UserViewSet(viewsets.Viewset):
 class PostView(APIView):
 
     # Cache page for the requested url
-    @method_decorator(cache_page(60*60*2))  
+    @method_decorator(cache_page(60*60*2))
     def get(self, request, format=None):
         content = {
             'title': 'Post title',

docs/api-guide/generic-views.md

@@ -113,11 +113,11 @@ For example:
 
 Note that if your API doesn't include any object level permissions, you may optionally exclude the `self.check_object_permissions`, and simply return the object from the `get_object_or_404` lookup.
 
-#### `filter_queryset(self, queryset)`       
+#### `filter_queryset(self, queryset)`
 
-Given a queryset, filter it with whichever filter backends are in use, returning a new queryset.   
+Given a queryset, filter it with whichever filter backends are in use, returning a new queryset.
 
-For example:       
+For example:
 
     def filter_queryset(self, queryset):
         filter_backends = (CategoryFilter,)

docs/api-guide/permissions.md

@@ -197,15 +197,15 @@ If you need to test if a request is a read operation or a write operation, you s
 ---
 
 Custom permissions will raise a `PermissionDenied` exception if the test fails. To change the error message associated with the exception, implement a `message` attribute directly on your custom permission. Otherwise the `default_detail` attribute from `PermissionDenied` will be used.
-    
+
     from rest_framework import permissions
 
     class CustomerAccessPermission(permissions.BasePermission):
         message = 'Adding customers not allowed.'
-        
+
         def has_permission(self, request, view):
              ...
-        
+
 ## Examples
 
 The following is an example of a permission class that checks the incoming request's IP address against a blacklist, and denies the request if the IP has been blacklisted.

docs/api-guide/routers.md

@@ -58,11 +58,11 @@ For example, you can append `router.urls` to a list of existing views…
     router = routers.SimpleRouter()
     router.register(r'users', UserViewSet)
     router.register(r'accounts', AccountViewSet)
-    
+
     urlpatterns = [
         url(r'^forgot-password/$', ForgotPasswordFormView.as_view()),
     ]
-    
+
     urlpatterns += router.urls
 
 Alternatively you can use Django's `include` function, like so…
@@ -106,10 +106,10 @@ For example, if you want to change the URL for our custom action to `^users/{pk}
 
     from myapp.permissions import IsAdminOrIsSelf
     from rest_framework.decorators import detail_route
-    
+
     class UserViewSet(ModelViewSet):
         ...
-        
+
         @detail_route(methods=['post'], permission_classes=[IsAdminOrIsSelf], url_path='change-password')
         def set_password(self, request, pk=None):
             ...
@@ -124,10 +124,10 @@ For example, if you want to change the name of our custom action to `'user-chang
 
     from myapp.permissions import IsAdminOrIsSelf
     from rest_framework.decorators import detail_route
-    
+
     class UserViewSet(ModelViewSet):
         ...
-        
+
         @detail_route(methods=['post'], permission_classes=[IsAdminOrIsSelf], url_name='change-password')
         def set_password(self, request, pk=None):
             ...

docs/api-guide/schemas.md

@@ -784,4 +784,3 @@ in [OpenAPI][open-api] format.
 [api-blueprint]: https://apiblueprint.org/
 [static-files]: https://docs.djangoproject.com/en/stable/howto/static-files/
 [named-arguments]: https://docs.djangoproject.com/en/stable/topics/http/urls/#named-groups
- 

docs/api-guide/validators.md

@@ -84,7 +84,7 @@ It has two required arguments, and a single optional `messages` argument:
 The validator should be applied to *serializer classes*, like so:
 
     from rest_framework.validators import UniqueTogetherValidator
-    
+
     class ExampleSerializer(serializers.Serializer):
         # ...
         class Meta:

docs/topics/3.7-announcement.md

@@ -1,4 +1,3 @@
-
 <style>
 .promo li a {
     float: left;

docs/topics/browser-enhancements.md

@@ -50,7 +50,7 @@ Prior to version 3.3.0 the semi extension header `X-HTTP-Method-Override` was su
 For example:
 
     METHOD_OVERRIDE_HEADER = 'HTTP_X_HTTP_METHOD_OVERRIDE'
- 
+
     class MethodOverrideMiddleware(object):
         def process_view(self, request, callback, callback_args, callback_kwargs):
             if request.method != 'POST':

docs/topics/html-and-forms.md

@@ -40,7 +40,7 @@ Here's an example of a view that returns a list of "Profile" instances, rendered
         {% endfor %}
     </ul>
     </body></html>
-    
+
 ## Rendering Forms
 
 Serializers may be rendered as forms by using the `render_form` template tag, and including the serializer instance as context to the template.
@@ -77,7 +77,7 @@ The following view demonstrates an example of using a serializer in a template f
     {% load rest_framework %}
 
     <html><body>
-    
+
     <h1>Profile - {{ profile.name }}</h1>
 
     <form action="{% url 'profile-detail' pk=profile.pk %}" method="POST">

docs/topics/jobs.md

@@ -32,7 +32,7 @@ Wonder how else you can help? One of the best ways you can help Django REST Fram
 [stackoverflow-com]: http://stackoverflow.com/jobs/developer-jobs-using-django
 [upwork-com]: https://www.upwork.com/o/jobs/browse/skill/django-framework/
 [technobjobs-co-uk]: https://www.technojobs.co.uk/django-jobs
-[remoteok-io]: https://remoteok.io/remote-django-jobs  
+[remoteok-io]: https://remoteok.io/remote-django-jobs
 [remotepython-com]: https://www.remotepython.com/jobs/
 [drf-funding]: https://fund.django-rest-framework.org/topics/funding/
 [submit-pr]: https://github.com/encode/django-rest-framework

rest_framework/compat.py

@@ -318,4 +318,3 @@ def authenticate(request=None, **credentials):
         return authenticate(**credentials)
     else:
         return authenticate(request=request, **credentials)
-

rest_framework/static/rest_framework/css/default.css

@@ -1,4 +1,3 @@
-
 /* The navbar is fixed at >= 980px wide, so add padding to the body to prevent
 content running up underneath it. */
 

rest_framework/static/rest_framework/docs/fonts/fontawesome-webfont.svg

@@ -411,4 +411,4 @@
 <glyph unicode="&#xf19e;" horiz-adv-x="1792" />
 <glyph unicode="&#xf500;" horiz-adv-x="1792" />
 </font>
-</defs></svg> 
+</defs></svg>

rest_framework/static/rest_framework/docs/fonts/glyphicons-halflings-regular.svg

@@ -285,4 +285,4 @@
 <glyph unicode="&#x1f511;" d="M250 1200h600q21 0 35.5 -14.5t14.5 -35.5v-400q0 -21 -14.5 -35.5t-35.5 -14.5h-150v-500l-255 -178q-19 -9 -32 -1t-13 29v650h-150q-21 0 -35.5 14.5t-14.5 35.5v400q0 21 14.5 35.5t35.5 14.5zM400 1100v-100h300v100h-300z" />
 <glyph unicode="&#x1f6aa;" d="M250 1200h750q39 0 69.5 -40.5t30.5 -84.5v-933l-700 -117v950l600 125h-700v-1000h-100v1025q0 23 15.5 49t34.5 26zM500 525v-100l100 20v100z" />
 </font>
-</defs></svg> 
+</defs></svg>

rest_framework/static/rest_framework/fonts/glyphicons-halflings-regular.svg

@@ -285,4 +285,4 @@
 <glyph unicode="&#x1f511;" d="M250 1200h600q21 0 35.5 -14.5t14.5 -35.5v-400q0 -21 -14.5 -35.5t-35.5 -14.5h-150v-500l-255 -178q-19 -9 -32 -1t-13 29v650h-150q-21 0 -35.5 14.5t-14.5 35.5v400q0 21 14.5 35.5t35.5 14.5zM400 1100v-100h300v100h-300z" />
 <glyph unicode="&#x1f6aa;" d="M250 1200h750q39 0 69.5 -40.5t30.5 -84.5v-933l-700 -117v950l600 125h-700v-1000h-100v1025q0 23 15.5 49t34.5 26zM500 525v-100l100 20v100z" />
 </font>
-</defs></svg> 
+</defs></svg>

rest_framework/templates/rest_framework/docs/error.html

@@ -69,7 +69,3 @@ at <code>rest_framework/docs/error.html</code>.</p>
         <script src="{% static 'rest_framework/docs/js/jquery-1.10.2.min.js' %}"></script>
     </body>
 </html>
-
-
-
-

rest_framework/templates/rest_framework/docs/langs/javascript-intro.html

@@ -3,4 +3,3 @@
 <pre class="highlight javascript hide" data-language="javascript"><code>{% code html %}<!-- Load the JavaScript client library -->
 <script src="{% static 'rest_framework/js/coreapi-0.1.1.js' %}"></script>
 <script src="{% url 'api-docs:schema-js' %}"></script>{% endcode %}</code></pre>
-

tests/importable/__init__.py

@@ -1,2 +1 @@
-
 from rest_framework import compat  # noqa

tests/importable/test_installed.py

@@ -1,4 +1,3 @@
-
 from django.conf import settings
 from tests import importable