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/Parser/parser.c b/Parser/parser.c
index 2ce84cd..61da37d 100644
--- a/Parser/parser.c
+++ b/Parser/parser.c
@@ -149,12 +149,10 @@
 			    strcmp(l->lb_str, s) != 0)
 				continue;
 #ifdef PY_PARSER_REQUIRES_FUTURE_KEYWORD
-			if (!(ps->p_flags & CO_FUTURE_WITH_STATEMENT)) {
-				if (s[0] == 'w' && strcmp(s, "with") == 0)
-					break; /* not a keyword yet */
-				else if (s[0] == 'a' && strcmp(s, "as") == 0)
-					break; /* not a keyword yet */
-			}
+                        if (ps->p_flags & CO_FUTURE_PRINT_FUNCTION &&
+                            s[0] == 'p' && strcmp(s, "print") == 0) { 
+                                break; /* no longer a keyword */
+                        }
 #endif
 			D(printf("It's a keyword\n"));
 			return n - i;
@@ -208,6 +206,10 @@
 		    strcmp(STR(CHILD(cch, 0)), "with_statement") == 0) {
 			ps->p_flags |= CO_FUTURE_WITH_STATEMENT;
 			break;
+		} else if (NCH(cch) >= 1 && TYPE(CHILD(cch, 0)) == NAME &&
+		    strcmp(STR(CHILD(cch, 0)), "print_function") == 0) {
+			ps->p_flags |= CO_FUTURE_PRINT_FUNCTION;
+			break;
 		}
 	}
 }