Import os_helper directly.

Author: jaraco

tests/test_main.py

@@ -4,6 +4,7 @@
 import unittest
 
 import pyfakefs.fake_filesystem_unittest as ffs
+from test.support import os_helper
 
 import importlib_metadata
 from importlib_metadata import (
@@ -20,7 +21,6 @@
 
 from . import fixtures
 from ._path import Symlink
-from .fixtures import os_helper
 
 
 class BasicTests(fixtures.DistInfoPkg, unittest.TestCase):