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-rw-r--r--py/modsys.c2
-rw-r--r--py/mpconfig.h4
2 files changed, 6 insertions, 0 deletions
diff --git a/py/modsys.c b/py/modsys.c
index 7f8cd68a8d..59539b3b90 100644
--- a/py/modsys.c
+++ b/py/modsys.c
@@ -23,9 +23,11 @@ STATIC const mp_map_elem_t mp_module_sys_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_path), (mp_obj_t)&mp_sys_path_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_argv), (mp_obj_t)&mp_sys_argv_obj },
+#if MICROPY_MOD_SYS_STDFILES
{ MP_OBJ_NEW_QSTR(MP_QSTR_stdin), (mp_obj_t)&mp_sys_stdin_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_stdout), (mp_obj_t)&mp_sys_stdout_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_stderr), (mp_obj_t)&mp_sys_stderr_obj },
+#endif
};
STATIC const mp_obj_dict_t mp_module_sys_globals = {
diff --git a/py/mpconfig.h b/py/mpconfig.h
index 119d0177dd..cbe18b409b 100644
--- a/py/mpconfig.h
+++ b/py/mpconfig.h
@@ -125,6 +125,10 @@ typedef double mp_float_t;
#define MICROPY_ENABLE_MOD_SYS (1)
#endif
+#ifndef MICROPY_MOD_SYS_STDFILES
+#define MICROPY_MOD_SYS_STDFILES (0)
+#endif
+
// Whether to support slice object and correspondingly
// slice subscript operators
#ifndef MICROPY_ENABLE_SLICE