SVN: ZODB/trunk/src/ZODB/broken.py Added a small optimization to avoid unnecessary imports that were

Log message for revision 112414:
  Added a small optimization to avoid unnecessary imports that were
  sucking up a lot of time, as shown in some profile output.
  

Changed:
  U   ZODB/trunk/src/ZODB/broken.py

-=-
Modified: ZODB/trunk/src/ZODB/broken.py
===================================================================
--- ZODB/trunk/src/ZODB/broken.py	2010-05-17 13:36:20 UTC (rev 112413)
+++ ZODB/trunk/src/ZODB/broken.py	2010-05-17 15:01:51 UTC (rev 112414)
@@ -183,7 +183,14 @@
 
          >>> broken_cache.clear()
        """
+
+    # short circuit common case:
     try:
+        return getattr(sys.modules[modulename], globalname)
+    except (AttributeError, KeyError):
+        pass
+
+    try:
         __import__(modulename)
     except ImportError:
         pass