Change const byte* to const char* where sensible.
This removes need for some casts (at least, more than it adds need
for new casts!).
diff --git a/py/builtinimport.c b/py/builtinimport.c
index fa1a839..50780c0 100644
--- a/py/builtinimport.c
+++ b/py/builtinimport.c
@@ -318,7 +318,7 @@
DEBUG_printf("%s is dir\n", vstr_str(&path));
// https://docs.python.org/3.3/reference/import.html
// "Specifically, any module that contains a __path__ attribute is considered a package."
- mp_store_attr(module_obj, MP_QSTR___path__, mp_obj_new_str((byte*)vstr_str(&path), vstr_len(&path), false));
+ mp_store_attr(module_obj, MP_QSTR___path__, mp_obj_new_str(vstr_str(&path), vstr_len(&path), false));
vstr_add_char(&path, PATH_SEP_CHAR);
vstr_add_str(&path, "__init__.py");
if (mp_import_stat(vstr_str(&path)) != MP_IMPORT_STAT_FILE) {