- worked it out so that classes declare a nested class "event",

with methods representing events.  This is self-documenting via sphinx.
- implemented new model for pool, classmanager.   Most events are
one or two args, so going back to allowing any kind of *arg, **kw
signature for events - this is simpler and improves performance,
though we don't get the "we can add new kw's anytime".  perhaps
there's some other way to approach that.

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/sqlalchemy/engine/base.py b/lib/sqlalchemy/engine/base.py
index 51620dd37..ae7df83f6 100644
--- a/lib/sqlalchemy/engine/base.py
+++ b/lib/sqlalchemy/engine/base.py
@@ -1546,7 +1546,7 @@ class TwoPhaseTransaction(Transaction):
     def _do_commit(self):
         self.connection._commit_twophase_impl(self.xid, self._is_prepared)
 
-class _EngineDispatch(event.Dispatch):
+class _EngineDispatch(event.Events):
     def append(self, fn, identifier, target):
         if isinstance(target.Connection, Connection):
             target.Connection = _proxy_connection_cls(target.Connection, self)
@@ -1575,6 +1575,7 @@ class Engine(Connectable, log.Identified):
     Connection = Connection
     _dispatch = event.dispatcher(_EngineDispatch)
     
+    
     def __init__(self, pool, dialect, url, 
                         logging_name=None, echo=None, proxy=None,
                         execution_options=None