Backport of the print function, using a __future__ import.
This work is substantially Anthony Baxter's, from issue
1633807.  I just freshened it, made a few minor tweaks,
and added the test cases.  I also created issue 2412,
which is to check for 2to3's behavior with the print
function.  I also added myself to ACKS.
diff --git a/Include/code.h b/Include/code.h
index 07e3b1f..0e89b88 100644
--- a/Include/code.h
+++ b/Include/code.h
@@ -48,11 +48,12 @@
 #define CO_FUTURE_DIVISION    	0x2000
 #define CO_FUTURE_ABSOLUTE_IMPORT 0x4000 /* do absolute imports by default */
 #define CO_FUTURE_WITH_STATEMENT  0x8000
+#define CO_FUTURE_PRINT_FUNCTION  0x10000
 
 /* This should be defined if a future statement modifies the syntax.
    For example, when a keyword is added.
 */
-#if 0
+#if 1
 #define PY_PARSER_REQUIRES_FUTURE_KEYWORD
 #endif