bpo-40275: Use new test.support helper submodules in tests (GH-21449)
diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
index 3bc1a3e..edb4ec0 100644
--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -26,10 +26,10 @@
from types import AsyncGeneratorType, FunctionType
from operator import neg
from test import support
-from test.support import (
- EnvironmentVarGuard, TESTFN, check_warnings, swap_attr, unlink,
- maybe_get_event_loop_policy)
+from test.support import (swap_attr, maybe_get_event_loop_policy)
+from test.support.os_helper import (EnvironmentVarGuard, TESTFN, unlink)
from test.support.script_helper import assert_python_ok
+from test.support.warnings_helper import check_warnings
from unittest.mock import MagicMock, patch
try:
import pty, signal