Separate submodule import from other imports

Author: hugovk

Lib/test/test_code_module.py

@@ -5,7 +5,8 @@
 from textwrap import dedent
 from contextlib import ExitStack
 from unittest import mock
-from test.support import force_not_colorized_test_class, import_helper
+from test.support import force_not_colorized_test_class
+from test.support import import_helper
 
 code = import_helper.import_module('code')