diff --git a/yml2block/rules.py b/yml2block/rules.py
index 1bc0836..6d53f15 100644
--- a/yml2block/rules.py
+++ b/yml2block/rules.py
@@ -244,7 +244,15 @@ def no_trailing_white_spaces(list_item, tsv_keyword):
     """
     entries_to_check = {
         "metadataBlock": ("name", "dataverseAlias"),
-        "datasetField": ("name", "title", "description", "watermark", "fieldType", "parent", "metadatablock_id"),
+        "datasetField": (
+            "name",
+            "title",
+            "description",
+            "watermark",
+            "fieldType",
+            "parent",
+            "metadatablock_id",
+        ),
         "controlledVocabulary": ("Value", "identifier"),
     }
 
diff --git a/yml2block/tsv_input.py b/yml2block/tsv_input.py
index 026a04b..5ef155c 100644
--- a/yml2block/tsv_input.py
+++ b/yml2block/tsv_input.py
@@ -77,7 +77,7 @@ def _parse(block):
         # For consistency with the yaml format
         toplevel_key = toplevel_key_with_prefix.lstrip("#")
         row_as_dict = dict()
-        
+
         for key, value in row.items():
             if key is None:
                 # These entries cannot be associated with a column header