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builtinimport.c: Recognize "namespace package" and error out as unsupported. 

See http://www.python.org/dev/peps/pep-0420/#specification for spec. See
https://github.com/micropython/micropython/issues/298 for the discussion
of the implemented behavior.
This commit is contained in:
Paul Sokolovsky 2014-02-16 01:51:46 +02:00
parent e5d371b545
commit d3783570a4
1 changed files with 7 additions and 3 deletions
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10
py/builtinimport.c
View File

@ -184,10 +184,14 @@ mp_obj_t mp_builtin___import__(int n_args, mp_obj_t *args) {
if (stat == MP_IMPORT_STAT_DIR) {
vstr_add_char(&path, PATH_SEP_CHAR);
vstr_add_str(&path, "__init__.py");
if (mp_import_stat(vstr_str(&path)) == MP_IMPORT_STAT_FILE) {
do_load(module_obj, &path);
if (mp_import_stat(vstr_str(&path)) != MP_IMPORT_STAT_FILE) {
vstr_cut_tail(&path, sizeof("/__init__.py") - 1); // cut off /__init__.py
nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_ImportError,
"Per PEP-420 a dir without __init__.py (%s) is a namespace package; "
"namespace packages are not supported", vstr_str(&path)));
}
vstr_cut_tail(&path, 12); // cut off /__init__.py
do_load(module_obj, &path);
vstr_cut_tail(&path, sizeof("/__init__.py") - 1); // cut off /__init__.py
} else { // MP_IMPORT_STAT_FILE
do_load(module_obj, &path);
break;