diff --git a/python/pyarrow/_parquet.pyx b/python/pyarrow/_parquet.pyx
index c8723d3fcacaa..a8abf965d3d7b 100644
--- a/python/pyarrow/_parquet.pyx
+++ b/python/pyarrow/_parquet.pyx
@@ -2189,7 +2189,7 @@ cdef class ParquetWriter(_Weakrefable):
         with nogil:
             check_status(self.writer.get()
                          .WriteTable(deref(ctable), c_row_group_size))
-    
+
     def add_key_value_metadata(self, key_value_metadata):
         cdef:
             shared_ptr[const CKeyValueMetadata] c_metadata
diff --git a/python/pyarrow/tests/parquet/test_basic.py b/python/pyarrow/tests/parquet/test_basic.py
index 93e0fd1ab93cd..a3e0fd5760226 100644
--- a/python/pyarrow/tests/parquet/test_basic.py
+++ b/python/pyarrow/tests/parquet/test_basic.py
@@ -932,6 +932,7 @@ def test_deprecated_use_legacy_dataset(tempdir):
     with pytest.warns(FutureWarning, match=msg):
         pq.ParquetDataset(path, use_legacy_dataset=False)
 
+
 def test_append_key_value_metadata(tempdir):
     table = pa.Table.from_arrays([pa.array([], type='int32')], ['f0'])
     path = tempdir / 'metadata.parquet'