s4:python Allow 'no such object' on the delete of the DN

This fixes the recursive delete in erase_partitions()

For reasons I cannot understand, it is possible to get 'no such
object' trying to delete a DN I just search for without error.  Oh
well...

Andrew Bartlett

source4/scripting/python/samba/__init__.py

@@ -158,7 +158,11 @@ class Ldb(ldb.Ldb):
             for msg in res:
                 erase_recursive(self, msg.dn)
 
-            self.delete(dn)
+            try:
+                self.delete(dn)
+            except ldb.LdbError, (ldb.ERR_NO_SUCH_OBJECT, _):
+                # Ignore no such object errors
+                pass
 
         res = self.search("", ldb.SCOPE_BASE, "(objectClass=*)", 
                          ["namingContexts"])