Find submodule within pyz

Closes #2770

Author: grayjk

astroid/interpreter/_import/spec.py

@@ -325,6 +325,11 @@ def find_module(
             submodule_search_locations=path,
         )
 
+    def contribute_to_path(
+        self, spec: ModuleSpec, processed: list[str]
+    ) -> Sequence[str] | None:
+        return spec.submodule_search_locations
+
 
 class PathSpecFinder(Finder):
     """Finder based on importlib.machinery.PathFinder."""

tests/test_manager.py

@@ -284,6 +284,17 @@ def test_ast_from_module_name_pyz(self) -> None:
         finally:
             os.remove(linked_file_name)
 
+    def test_ast_from_module_name_pyz_with_submodule(self) -> None:
+        with self._restore_package_cache():
+            archive_path = os.path.join(resources.RESOURCE_PATH, "x.zip")
+            sys.path.insert(0, archive_path)
+            module = self.manager.ast_from_module_name("xxx.test")
+            self.assertEqual(module.name, "xxx.test")
+            end = os.path.join(archive_path, "xxx", "test")
+            self.assertTrue(
+                module.file.endswith(end), f"{module.file} doesn't endswith {end}"
+            )
+
     def test_zip_import_data(self) -> None:
         """Check if zip_import_data works."""
         with self._restore_package_cache():