diff --git a/premise/electricity.py b/premise/electricity.py
index 3d3f8abd..aa1f5dd2 100644
--- a/premise/electricity.py
+++ b/premise/electricity.py
@@ -1463,7 +1463,8 @@ def create_biomass_markets(self) -> None:
             }
 
             available_biomass_vars = [
-                v for v in list(biomass_map.keys())
+                v
+                for v in list(biomass_map.keys())
                 if v in self.iam_data.production_volumes.variables.values
             ]
 
@@ -1481,7 +1482,6 @@ def create_biomass_markets(self) -> None:
                 )
 
                 if biomass_type in available_biomass_vars:
-
                     share = np.clip(
                         (
                             self.iam_data.production_volumes.sel(
diff --git a/premise/export.py b/premise/export.py
index 927d50e7..04dd048a 100644
--- a/premise/export.py
+++ b/premise/export.py
@@ -811,12 +811,7 @@ def generate_scenario_difference_file(
 
 
 def generate_superstructure_db(
-    origin_db,
-    scenarios,
-    db_name,
-    filepath,
-    version,
-    format="excel"
+    origin_db, scenarios, db_name, filepath, version, format="excel"
 ) -> List[dict]:
     """
     Build a superstructure database from a list of databases
diff --git a/setup.py b/setup.py
index 0ee77208..7289b8e2 100644
--- a/setup.py
+++ b/setup.py
@@ -58,7 +58,7 @@ def package_files(directory):
         "requests",
         "bottleneck",
         "constructive_geometries>=0.8.2",
-        "pyarrow"
+        "pyarrow",
     ],
     url="https://github.com/polca/premise",
     description="Coupling IAM output to ecoinvent LCA database ecoinvent for prospective LCA",