normalize multiline imports

bakerydemo/base/blocks.py

@@ -1,12 +1,7 @@
 from wagtail.wagtailimages.blocks import ImageChooserBlock
 from wagtail.wagtailembeds.blocks import EmbedBlock
 from wagtail.wagtailcore.blocks import (
-    CharBlock,
+    CharBlock, ChoiceBlock, RichTextBlock, StreamBlock, StructBlock, TextBlock,
-    ChoiceBlock,
-    RichTextBlock,
-    StreamBlock,
-    StructBlock,
-    TextBlock,
 )
 
 

bakerydemo/blog/models.py

@@ -11,9 +11,7 @@ from taggit.models import Tag, TaggedItemBase
 
 from wagtail.contrib.wagtailroutablepage.models import RoutablePageMixin, route
 from wagtail.wagtailadmin.edit_handlers import (
-    FieldPanel,
+    FieldPanel, InlinePanel, StreamFieldPanel,
-    InlinePanel,
-    StreamFieldPanel,
 )
 from wagtail.wagtailcore.fields import StreamField
 from wagtail.wagtailcore.models import Page, Orderable