Patch #2477: Added from __future__ import unicode_literals
The new PyParser_*Ex() functions are based on Neal's suggestion and initial patch. The new __future__ feature makes all '' and r'' unicode strings. b'' and br'' stay (byte) strings.
diff --git a/Include/code.h b/Include/code.h
index 0e89b88..8c00700 100644
--- a/Include/code.h
+++ b/Include/code.h
@@ -49,6 +49,7 @@
#define CO_FUTURE_ABSOLUTE_IMPORT 0x4000 /* do absolute imports by default */
#define CO_FUTURE_WITH_STATEMENT 0x8000
#define CO_FUTURE_PRINT_FUNCTION 0x10000
+#define CO_FUTURE_UNICODE_LITERALS 0x20000
/* This should be defined if a future statement modifies the syntax.
For example, when a keyword is added.