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-rw-r--r--py/modsys.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/py/modsys.c b/py/modsys.c
index 609f8b454..98addfcfc 100644
--- a/py/modsys.c
+++ b/py/modsys.c
@@ -106,7 +106,8 @@ STATIC mp_obj_t mp_sys_print_exception(size_t n_args, const mp_obj_t *args) {
#if MICROPY_PY_IO && MICROPY_PY_SYS_STDFILES
void *stream_obj = &mp_sys_stdout_obj;
if (n_args > 1) {
- stream_obj = MP_OBJ_TO_PTR(args[1]); // XXX may fail
+ mp_get_stream_raise(args[1], MP_STREAM_OP_WRITE);
+ stream_obj = MP_OBJ_TO_PTR(args[1]);
}
mp_print_t print = {stream_obj, mp_stream_write_adaptor};