diff --git a/plone/app/discussion/browser/migration.py b/plone/app/discussion/browser/migration.py
index 7859091..cf615ce 100644
--- a/plone/app/discussion/browser/migration.py
+++ b/plone/app/discussion/browser/migration.py
@@ -107,12 +107,16 @@ class View(BrowserView):
                         comment.author_name = member.fullname
 
                     if not comment.author_name:
-                        # In migrated site member.fullname ='' while member.getProperty('fullname') has the correct value
+                        # In migrated site member.fullname = ''
+                        # while member.getProperty('fullname') has the
+                        # correct value
                         if member:
-                            comment.author_name = member.getProperty('fullname')
+                            comment.author_name = member.getProperty(
+                                'fullname'
+                            )
                         else:
                             comment.author_name = comment.author_username
-                        
+
                     try:
                         comment.author_email = reply.email
                     except AttributeError:
@@ -140,8 +144,8 @@ class View(BrowserView):
                         'comment': 'Migrated workflow state',
                         'review_state': old_status and old_status.get(
                             'review_state',
-                            new_workflow.initial_state)
-                            or 'published',
+                            new_workflow.initial_state
+                        ) or 'published',
                         'time': DateTime()
                     }
                     workflow.setStatusOf('comment_review_workflow',
@@ -186,13 +190,17 @@ class View(BrowserView):
             object_provides='Products.CMFCore.interfaces._content.IContentish')
         log("Found %s content objects." % len(brains))
 
-        count_discussion_items = len(catalog.searchResults(
-                                         Type='Discussion Item'))
-        count_comments_pad = len(catalog.searchResults(
-                                     object_provides=IComment.__identifier__))
-        count_comments_old = len(catalog.searchResults(
-                                     object_provides=IDiscussionResponse.\
-                                         __identifier__))
+        count_discussion_items = len(
+            catalog.searchResults(Type='Discussion Item')
+        )
+        count_comments_pad = len(
+            catalog.searchResults(object_provides=IComment.__identifier__)
+        )
+        count_comments_old = len(
+            catalog.searchResults(
+                object_provides=IDiscussionResponse.__identifier__
+            )
+        )
 
         log("Found %s Discussion Item objects." % count_discussion_items)
         log("Found %s old discussion items." % count_comments_old)
@@ -225,10 +233,14 @@ class View(BrowserView):
                 obj.talkback = None
 
         if self.total_comments_deleted != self.total_comments_migrated:
-            log("Something went wrong during migration. The number of \
-                migrated comments (%s) differs from the number of deleted \
-                comments (%s)."  # pragma: no cover
-                 % (self.total_comments_migrated, self.total_comments_deleted))
+            log(
+                "Something went wrong during migration. The number of " +
+                "migrated comments (%s) differs from the number of deleted " +
+                "comments (%s)." % (
+                    self.total_comments_migrated,
+                    self.total_comments_deleted
+                )
+            )
             if not test:  # pragma: no cover
                 transaction.abort()  # pragma: no cover
             log("Abort transaction")  # pragma: no cover
@@ -241,9 +253,11 @@ class View(BrowserView):
             % (self.total_comments_migrated, count_comments_old))
 
         if self.total_comments_migrated != count_comments_old:
-            log("%s comments could not be migrated." %
-                (count_comments_old - \
-                self.total_comments_migrated))  # pragma: no cover
+            log(
+                "%s comments could not be migrated." % (
+                    count_comments_old - self.total_comments_migrated
+                )
+            )  # pragma: no cover
             log("Please make sure your " +
                 "portal catalog is up-to-date.")  # pragma: no cover