diff options
Diffstat (limited to 'py')
| -rw-r--r-- | py/objstr.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/py/objstr.c b/py/objstr.c index 5e9f0c76b6..06bc98a723 100644 --- a/py/objstr.c +++ b/py/objstr.c @@ -329,17 +329,19 @@ STATIC mp_obj_t str_join(mp_obj_t self_in, mp_obj_t arg) { mp_obj_t *seq_items; if (MP_OBJ_IS_TYPE(arg, &mp_type_tuple)) { mp_obj_tuple_get(arg, &seq_len, &seq_items); - } else if (MP_OBJ_IS_TYPE(arg, &mp_type_list)) { - mp_obj_list_get(arg, &seq_len, &seq_items); } else { - goto bad_arg; + if (!MP_OBJ_IS_TYPE(arg, &mp_type_list)) { + // arg is not a list, try to convert it to one + arg = mp_type_list.make_new((mp_obj_t)&mp_type_list, 1, 0, &arg); + } + mp_obj_list_get(arg, &seq_len, &seq_items); } // count required length int required_len = 0; for (int i = 0; i < seq_len; i++) { if (!MP_OBJ_IS_STR(seq_items[i])) { - goto bad_arg; + nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "join expected a list of str's")); } if (i > 0) { required_len += sep_len; @@ -363,9 +365,6 @@ STATIC mp_obj_t str_join(mp_obj_t self_in, mp_obj_t arg) { // return joined string return mp_obj_str_builder_end(joined_str); - -bad_arg: - nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "?str.join expecting a list of str's")); } #define is_ws(c) ((c) == ' ' || (c) == '\t') |