Change test for None oid in invalidate() to assert.

Reindent MUCH_RING_CHECKING test.

src/ZODB/Connection.py

@@ -13,7 +13,7 @@
 ##############################################################################
 """Database connection support
 
-$Id: Connection.py,v 1.68 2002/06/12 15:30:05 jeremy Exp $"""
+$Id: Connection.py,v 1.69 2002/06/12 19:40:47 jeremy Exp $"""
 
 from cPickleCache import PickleCache, MUCH_RING_CHECKING
 from POSException import ConflictError, ReadConflictError
@@ -32,10 +32,10 @@ from types import StringType, ClassType
 global_code_timestamp = 0
 
 if MUCH_RING_CHECKING:
-  # To get rid of this warning, change the define inside
-  # cPickleCache.c and recompile.
-  LOG('ZODB',WARNING,
-      'Using cPickleCache with low performance (but extra debugging checks)')
+    # To get rid of this warning, change the define inside
+    # cPickleCache.c and recompile.
+    LOG('ZODB',WARNING,
+        'Using cPickleCache with low performance (but extra debugging checks)')
 del MUCH_RING_CHECKING
 
 def updateCodeTimestamp():
@@ -225,8 +225,8 @@ class Connection(ExportImport.ExportImport):
         if object is self:
             self._cache.invalidate(self._invalidated)
         else:
-            if object._p_oid is not None:
-                self._cache.invalidate(object._p_oid)
+            assert object._p_oid is not None
+            self._cache.invalidate(object._p_oid)
 
     def cacheFullSweep(self, dt=0):
         self._cache.full_sweep(dt)