diff --git a/plone/app/discussion/__init__.py b/plone/app/discussion/__init__.py
index 11103ca..508015d 100644
--- a/plone/app/discussion/__init__.py
+++ b/plone/app/discussion/__init__.py
@@ -1,4 +1,4 @@
 # -*- coding: utf-8 -*-
 
 from zope.i18nmessageid import MessageFactory
-PloneAppDiscussionMessageFactory = MessageFactory('plone.app.discussion')
\ No newline at end of file
+PloneAppDiscussionMessageFactory = MessageFactory('plone.app.discussion')
diff --git a/plone/app/discussion/browser/validator.py b/plone/app/discussion/browser/validator.py
index 93b2181..87d4914 100644
--- a/plone/app/discussion/browser/validator.py
+++ b/plone/app/discussion/browser/validator.py
@@ -36,6 +36,7 @@ try:
 except ImportError:
     pass
 
+
 class CaptchaValidator(validator.SimpleFieldValidator):
     implements(IValidator)
     adapts(Interface, IDiscussionLayer, Interface, IField, Interface)
@@ -63,4 +64,3 @@ class CaptchaValidator(validator.SimpleFieldValidator):
 # Register Captcha validator for the Captcha field in the ICaptcha Form
 validator.WidgetValidatorDiscriminators(CaptchaValidator,
                                         field=ICaptcha['captcha'])
-
diff --git a/plone/app/discussion/interfaces.py b/plone/app/discussion/interfaces.py
index adcb38d..7f18b4e 100644
--- a/plone/app/discussion/interfaces.py
+++ b/plone/app/discussion/interfaces.py
@@ -50,16 +50,15 @@ class IDiscussionSettings(Interface):
         description=_(u"help_moderation_enabled",
                 default=u"If selected, comments will enter a 'Pending' state "
                          "in which they are invisible to the public. A user "
-                         "with the 'Review comments' permission ('Reviewer' or "
-                         "'Manager') can approve comments to make them visible "
-                         "to the public. If you want to enable a custom "
-                         "comment workflow, you have to go to the types "
-                         "control panel."),
+                         "with the 'Review comments' permission ('Reviewer' "
+                         "or 'Manager') can approve comments to make them "
+                         "visible to the public. If you want to enable a "
+                         "custom comment workflow, you have to go to the "
+                         "types control panel."),
         required=False,
         default=False,
         )
 
-
     text_transform = schema.Choice(
         title=_(u"label_text_transform",
                 default="Comment text transform"),
@@ -114,11 +113,12 @@ class IDiscussionSettings(Interface):
         )
 
     moderator_email = schema.ASCIILine(
-        title = _(u'label_moderator_email', default=u'Moderator Email Address'),
-        description = _(u'help_moderator_email',
-                        default=u"Address to which moderator notifications "
-                                u"will be sent."),
-        required = False,
+        title=_(u'label_moderator_email',
+                  default=u'Moderator Email Address'),
+        description=_(u'help_moderator_email',
+                      default=u"Address to which moderator notifications "
+                              u"will be sent."),
+        required=False,
         )
 
     user_notification_enabled = schema.Bool(
@@ -322,6 +322,7 @@ class ICommentingTool(Interface):
         """Perform a search over all indexed comments.
         """
 
+
 class IDiscussionLayer(Interface):
     """Request marker installed via browserlayer.xml.
     """