1 files changed, 32 insertions, 0 deletions
diff --git a/src/mailman/interfaces/listmanager.py b/src/mailman/interfaces/listmanager.py
index 1efb4342f..c1b7721a9 100644
--- a/src/mailman/interfaces/listmanager.py
+++ b/src/mailman/interfaces/listmanager.py
@@ -23,6 +23,10 @@ __metaclass__ = type
 __all__ = [
     'IListManager',
     'ListAlreadyExistsError',
+    'ListCreatedEvent',
+    'ListCreatingEvent',
+    'ListDeletedEvent',
+    'ListDeletingEvent',
     'NoSuchListError',
     ]
 
@@ -51,6 +55,34 @@ class NoSuchListError(MailmanError):
         return 'No such mailing list: {0.fqdn_listname}'.format(self)
 
 
+class ListCreatingEvent:
+    """A mailing list is about to be created."""
+
+    def __init__(self, fqdn_listname):
+        self.fqdn_listname = fqdn_listname
+
+
+class ListCreatedEvent:
+    """A mailing list was created."""
+
+    def __init__(self, mlist):
+        self.mailing_list = mlist
+
+
+class ListDeletingEvent:
+    """A mailing list is about to be deleted."""
+
+    def __init__(self, mailing_list):
+        self.mailing_list = mailing_list
+
+
+class ListDeletedEvent:
+    """A mailing list was deleted."""
+
+    def __init__(self, fqdn_listname):
+        self.fqdn_listname = fqdn_listname
+
+
 
 
 class IListManager(Interface):