diff --git a/scripts/prepare_sector_network.py b/scripts/prepare_sector_network.py
index 653b07cb..e0afbcd8 100644
--- a/scripts/prepare_sector_network.py
+++ b/scripts/prepare_sector_network.py
@@ -17,10 +17,7 @@ import numpy as np
 import pandas as pd
 import pypsa
 import xarray as xr
-from _helpers import (
-    generate_periodic_profiles,
-    update_config_with_sector_opts,
-)
+from _helpers import generate_periodic_profiles, update_config_with_sector_opts
 from add_electricity import calculate_annuity, sanitize_carriers
 from build_energy_totals import build_co2_totals, build_eea_co2, build_eurostat_co2
 from networkx.algorithms import complement
diff --git a/scripts/solve_network.py b/scripts/solve_network.py
index 0df66a83..6cc7ea45 100644
--- a/scripts/solve_network.py
+++ b/scripts/solve_network.py
@@ -33,10 +33,7 @@ import numpy as np
 import pandas as pd
 import pypsa
 import xarray as xr
-from _helpers import (
-    configure_logging,
-    update_config_with_sector_opts,
-)
+from _helpers import configure_logging, update_config_with_sector_opts
 
 logger = logging.getLogger(__name__)
 pypsa.pf.logger.setLevel(logging.WARNING)
diff --git a/scripts/solve_operations_network.py b/scripts/solve_operations_network.py
index 3da4d384..1a3855a9 100644
--- a/scripts/solve_operations_network.py
+++ b/scripts/solve_operations_network.py
@@ -11,10 +11,7 @@ import logging
 
 import numpy as np
 import pypsa
-from _helpers import (
-    configure_logging,
-    update_config_with_sector_opts,
-)
+from _helpers import configure_logging, update_config_with_sector_opts
 from solve_network import prepare_network, solve_network
 
 logger = logging.getLogger(__name__)