From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Thu, 22 Sep 2011 15:55:15 +0000 (-0400)
Subject: remove inline imports from core events too
X-Git-Tag: rel_0_7_3~35
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0f135b6bd20f7ddcce05711d0185c9c03bf2f41;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

remove inline imports from core events too
---

diff --git a/lib/sqlalchemy/events.py b/lib/sqlalchemy/events.py
index 50637705db..f7de851cc5 100644
--- a/lib/sqlalchemy/events.py
+++ b/lib/sqlalchemy/events.py
@@ -6,7 +6,10 @@
 
 """Core event interfaces."""
 
-from sqlalchemy import event, exc
+from sqlalchemy import event, exc, util
+engine = util.importlater('sqlalchemy', 'engine')
+pool = util.importlater('sqlalchemy', 'pool')
+
 
 class DDLEvents(event.Events):
     """
@@ -258,15 +261,12 @@ class PoolEvents(event.Events):
 
     @classmethod
     def _accept_with(cls, target):
-        from sqlalchemy.engine import Engine
-        from sqlalchemy.pool import Pool
-
         if isinstance(target, type):
-            if issubclass(target, Engine):
-                return Pool
-            elif issubclass(target, Pool):
+            if issubclass(target, engine.Engine):
+                return pool.Pool
+            elif issubclass(target, pool.Pool):
                 return target
-        elif isinstance(target, Engine):
+        elif isinstance(target, engine.Engine):
             return target.pool
         else:
             return target