[Checkins] SVN: zope.interface/trunk/src/zope/interface/interface.py using `__setattr__` instead of `property` speeds up zope start-up time again, since getting the value for `__bases__` through `__dict__` adds up with almost 200.000 calls; of course, there's some overhead, since `__setattr__` gets called for the other attributes as well, but overall start-up is still faster

[Andreas Zeidler]

Log message for revision 81363:
  using `__setattr__` instead of `property` speeds up zope start-up time again, since getting the value for `__bases__` through `__dict__` adds up with almost 200.000 calls;  of course, there's some overhead, since `__setattr__` gets called for the other attributes as well, but overall start-up is still faster

Changed:
  U   zope.interface/trunk/src/zope/interface/interface.py

-=-
Modified: zope.interface/trunk/src/zope/interface/interface.py
===================================================================
--- zope.interface/trunk/src/zope/interface/interface.py	2007-11-01 17:59:51 UTC (rev 81362)
+++ zope.interface/trunk/src/zope/interface/interface.py	2007-11-01 18:29:40 UTC (rev 81363)
@@ -274,7 +274,7 @@
 
     def __setBases(self, bases):
         # Register ourselves as a dependent of our old bases
-        for b in self.__bases__:
+        for b in getattr(self, '__bases__', ()):
             b.unsubscribe(self)
 
         # Register ourselves as a dependent of our bases
@@ -284,12 +284,12 @@
 
         self.changed(self)
 
-    __bases__ = property(
+    def __setattr__(self, name, value):
+        if name == '__bases__':
+            self.__setBases(value)
+        else:
+            self.__dict__[name] = value
 
-        lambda self: self.__dict__.get('__bases__', ()),
-        __setBases,
-        )
-
     def changed(self, originally_changed):
         """We, or something we depend on, have changed
         """