Fix linting issue

Author: anjsudh

pandas/tests/io/test_parquet.py

@@ -488,7 +488,6 @@ def test_partition_cols_supported(self, pa_ge_070, df_full):
                       compression=None)
         import pyarrow.parquet as pq
         dataset = pq.ParquetDataset(path, validate_schema=False)
-        assert len(dataset.pieces) == 2
         assert len(dataset.partitions.partition_names) == 2
         assert dataset.partitions.partition_names == set(partition_cols)
         shutil.rmtree(path)
@@ -497,7 +496,9 @@ def test_ignore_partition_cols_lt_070(self, pa_lt_070, df_full):
         partition_cols = ['bool', 'int']
         pa = pa_lt_070
         df = df_full
-        check_round_trip(df, pa, write_kwargs={'partition_cols': partition_cols})
+        check_round_trip(df, pa,
+                         write_kwargs={'partition_cols': partition_cols})
+
 
 class TestParquetFastParquet(Base):