diff --git a/pyproject_metadata/__init__.py b/pyproject_metadata/__init__.py
index 3d7ce42..e774560 100644
--- a/pyproject_metadata/__init__.py
+++ b/pyproject_metadata/__init__.py
@@ -76,10 +76,10 @@
     "RFC822Policy",
     "Readme",
     "StandardMetadata",
-    "field_to_metadata",
     "extras_build_system",
     "extras_project",
     "extras_top_level",
+    "field_to_metadata",
 ]
 
 
diff --git a/tests/test_standard_metadata.py b/tests/test_standard_metadata.py
index 177b095..26aa194 100644
--- a/tests/test_standard_metadata.py
+++ b/tests/test_standard_metadata.py
@@ -1259,8 +1259,10 @@ def test_license_file_24(
     pre_spdx = (
         metadata_version in pyproject_metadata.constants.PRE_SPDX_METADATA_VERSIONS
     )
-    with contextlib.nullcontext() if pre_spdx else pytest.warns(
-        pyproject_metadata.errors.ConfigurationWarning
+    with (
+        contextlib.nullcontext()
+        if pre_spdx
+        else pytest.warns(pyproject_metadata.errors.ConfigurationWarning)
     ):
         metadata = pyproject_metadata.StandardMetadata.from_pyproject(
             {