Py3k warnings now automatically include -Qwarn for division.

Misc/NEWS

@@ -12,6 +12,9 @@ What's New in Python 2.7 alpha 1
 Core and Builtins
 -----------------
 
+- Running Python with the -3 option now also warns about classic division
+  for ints and longs.
+
 - Issue #5260: Long integers now consume less memory:  average
   saving is 2 bytes per long on a 32-bit system and 6 bytes per long
   on a 64-bit system.

Modules/main.c

@@ -317,6 +317,8 @@ Py_Main(int argc, char **argv)
 
 		case '3':
 			Py_Py3kWarningFlag++;
+			if (!Py_DivisionWarningFlag)
+				Py_DivisionWarningFlag = 1;
 			break;
 
 		case 'Q':