builtinimport: Add basic support for namespace packages.
That was easy - just avoid erroring out on seeing candidate dir for namespace
package. That's far from being complete though - namespace packages should
support importing portions of package from different sys.path entries, here
we require first matching entry to contain all namespace package's portions.
And yet, that's a way to put parts of the same Python package into multiple
installable package - something we really need for *Micro*Python.
diff --git a/py/builtinimport.c b/py/builtinimport.c
index 3f63768..262ee04 100644
--- a/py/builtinimport.c
+++ b/py/builtinimport.c
@@ -292,11 +292,10 @@
vstr_add_str(&path, "__init__.py");
if (mp_import_stat(vstr_str(&path)) != MP_IMPORT_STAT_FILE) {
vstr_cut_tail_bytes(&path, sizeof("/__init__.py") - 1); // cut off /__init__.py
- nlr_raise(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)));
+ printf("Notice: %s is imported as namespace package\n", vstr_str(&path));
+ } else {
+ do_load(module_obj, &path);
}
- do_load(module_obj, &path);
vstr_cut_tail_bytes(&path, sizeof("/__init__.py") - 1); // cut off /__init__.py
// https://docs.python.org/3.3/reference/import.html
// "Specifically, any module that contains a __path__ attribute is considered a package."