diff --git a/symposion/teams/forms.py b/symposion/teams/forms.py
index 6004ae217f0b5444f69890a73656af10d5a77216..a9080626b7e9d24b755a5f48f6fd29bf028598c2 100644
--- a/symposion/teams/forms.py
+++ b/symposion/teams/forms.py
@@ -9,40 +9,43 @@ from symposion.teams.models import Membership
 
 
 class TeamInvitationForm(forms.Form):
-    
-    email = forms.EmailField(help_text="email address must be that of an account on this conference site")
-    
+
+    email = forms.EmailField(help_text=("email address must be that of an account on this "
+                                        "conference site"))
+
     def __init__(self, *args, **kwargs):
         self.team = kwargs.pop("team")
         super(TeamInvitationForm, self).__init__(*args, **kwargs)
-    
+
     def clean(self):
         cleaned_data = super(TeamInvitationForm, self).clean()
         email = cleaned_data.get("email")
-        
+
         if email is None:
             raise forms.ValidationError("valid email address required")
-        
+
         try:
             user = User.objects.get(email=email)
         except User.DoesNotExist:
             # eventually we can invite them but for now assume they are
             # already on the site
-            raise forms.ValidationError(mark_safe("no account with email address <b>%s</b> found on this conference site" % escape(email)))
-        
+            raise forms.ValidationError(
+                mark_safe("no account with email address <b>%s</b> found on this conference "
+                          "site" % escape(email)))
+
         state = self.team.get_state_for_user(user)
-        
+
         if state in ["member", "manager"]:
             raise forms.ValidationError("user already in team")
-        
+
         if state in ["invited"]:
             raise forms.ValidationError("user already invited to team")
-        
+
         self.user = user
         self.state = state
-        
+
         return cleaned_data
-    
+
     def invite(self):
         if self.state is None:
             Membership.objects.create(team=self.team, user=self.user, state="invited")