diff --git a/sdrf_pipelines/sdrf/sdrf.py b/sdrf_pipelines/sdrf/sdrf.py
index 6b7095c..1bce5aa 100644
--- a/sdrf_pipelines/sdrf/sdrf.py
+++ b/sdrf_pipelines/sdrf/sdrf.py
@@ -1,16 +1,21 @@
 import logging
 
 import pandas as pd
-from sdrf_pipelines.sdrf.sdrf_schema import (CELL_LINES_TEMPLATE,
-                                             HUMAN_TEMPLATE, MASS_SPECTROMETRY,
-                                             NON_VERTEBRATES_TEMPLATE,
-                                             PLANTS_TEMPLATE,
-                                             VERTEBRATES_TEMPLATE,
-                                             cell_lines_schema, default_schema,
-                                             human_schema,
-                                             mass_spectrometry_schema,
-                                             nonvertebrates_chema,
-                                             plants_chema, vertebrates_chema)
+from sdrf_pipelines.sdrf.sdrf_schema import (
+    CELL_LINES_TEMPLATE,
+    HUMAN_TEMPLATE,
+    MASS_SPECTROMETRY,
+    NON_VERTEBRATES_TEMPLATE,
+    PLANTS_TEMPLATE,
+    VERTEBRATES_TEMPLATE,
+    cell_lines_schema,
+    default_schema,
+    human_schema,
+    mass_spectrometry_schema,
+    nonvertebrates_chema,
+    plants_chema,
+    vertebrates_chema,
+)
 
 
 class SdrfDataFrame(pd.DataFrame):
diff --git a/sdrf_pipelines/sdrf/sdrf_schema.py b/sdrf_pipelines/sdrf/sdrf_schema.py
index 68c20e2..4b43294 100644
--- a/sdrf_pipelines/sdrf/sdrf_schema.py
+++ b/sdrf_pipelines/sdrf/sdrf_schema.py
@@ -5,10 +5,13 @@
 
 import pandas as pd
 from pandas_schema import Column, Schema
-from pandas_schema.validation import (LeadingWhitespaceValidation,
-                                      MatchesPatternValidation,
-                                      TrailingWhitespaceValidation,
-                                      _BaseValidation, _SeriesValidation)
+from pandas_schema.validation import (
+    LeadingWhitespaceValidation,
+    MatchesPatternValidation,
+    TrailingWhitespaceValidation,
+    _BaseValidation,
+    _SeriesValidation,
+)
 from sdrf_pipelines.sdrf import sdrf
 from sdrf_pipelines.utils.exceptions import LogicError
 from sdrf_pipelines.zooma.ols import OlsClient