diff --git a/tests/unit/test_utils.py b/tests/unit/test_utils.py
index 23f3c53d234..168a95c1da9 100644
--- a/tests/unit/test_utils.py
+++ b/tests/unit/test_utils.py
@@ -29,8 +29,7 @@
     call_subprocess, egg_link_path, ensure_dir, format_command_args,
     get_installed_distributions, get_prog, normalize_path, redact_netloc,
     redact_password_from_url, remove_auth_from_url, rmtree,
-    split_auth_from_netloc, split_auth_netloc_from_url, untar_file,
-    unzip_file,
+    split_auth_from_netloc, split_auth_netloc_from_url, untar_file, unzip_file,
 )
 from pip._internal.utils.packaging import check_dist_requires_python
 from pip._internal.utils.temp_dir import AdjacentTempDirectory, TempDirectory