1 files changed, 7 insertions, 0 deletions
diff --git a/unix/file.c b/unix/file.c
index 448cd50edc..7f113d6712 100644
--- a/unix/file.c
+++ b/unix/file.c
@@ -35,6 +35,7 @@
 #include "py/runtime.h"
 #include "py/stream.h"
 #include "py/builtin.h"
+#include "py/mphal.h"
 
 #if MICROPY_PY_IO
 
@@ -80,6 +81,12 @@ STATIC mp_uint_t fdfile_read(mp_obj_t o_in, void *buf, mp_uint_t size, int *errc
 STATIC mp_uint_t fdfile_write(mp_obj_t o_in, const void *buf, mp_uint_t size, int *errcode) {
     mp_obj_fdfile_t *o = MP_OBJ_TO_PTR(o_in);
     check_fd_is_open(o);
+    #if MICROPY_PY_OS_DUPTERM
+    if (o->fd <= STDERR_FILENO) {
+        mp_hal_stdout_tx_strn(buf, size);
+        return size;
+    }
+    #endif
     mp_int_t r = write(o->fd, buf, size);
     if (r == -1) {
         *errcode = errno;