Replace PyObject_Unicode with PyObject_Str everywhere, and remove the
#define for PyObject_Unicode in object.h.
diff --git a/Objects/stringlib/unicodedefs.h b/Objects/stringlib/unicodedefs.h
index fa6140f..64777be 100644
--- a/Objects/stringlib/unicodedefs.h
+++ b/Objects/stringlib/unicodedefs.h
@@ -20,7 +20,7 @@
#define STRINGLIB_NEW PyUnicode_FromUnicode
#define STRINGLIB_RESIZE PyUnicode_Resize
#define STRINGLIB_CHECK PyUnicode_Check
-#define STRINGLIB_TOSTR PyObject_Unicode
+#define STRINGLIB_TOSTR PyObject_Str
#define STRINGLIB_WANT_CONTAINS_OBJ 1