diff --git a/config/config.default.yaml b/config/config.default.yaml
index 527f68c4..92a24534 100644
--- a/config/config.default.yaml
+++ b/config/config.default.yaml
@@ -414,7 +414,7 @@ sector:
       SE: 70
       NO: 70
       FI: 70
-    return_temperature: 
+    return_temperature:
       default: 50
       DK: 40
       SE: 40
diff --git a/scripts/_helpers.py b/scripts/_helpers.py
index 040ba125..1c890ea5 100644
--- a/scripts/_helpers.py
+++ b/scripts/_helpers.py
@@ -788,4 +788,4 @@ def get_snapshots(snapshots, drop_leap_day=False, freq="h", **kwargs):
 
 
 def get_country_from_node_name(node_name: str) -> str:
-    return node_name[:2]
\ No newline at end of file
+    return node_name[:2]
diff --git a/scripts/build_cop_profiles/run.py b/scripts/build_cop_profiles/run.py
index d2976b6e..ef6253dd 100644
--- a/scripts/build_cop_profiles/run.py
+++ b/scripts/build_cop_profiles/run.py
@@ -5,7 +5,7 @@
 
 import numpy as np
 import xarray as xr
-from _helpers import set_scenario_config, get_country_from_node_name
+from _helpers import get_country_from_node_name, set_scenario_config
 from CentralHeatingCopApproximator import CentralHeatingCopApproximator
 from DecentralHeatingCopApproximator import DecentralHeatingCopApproximator
 
@@ -80,14 +80,14 @@ if __name__ == "__main__":
             map_temperature_dict_to_onshore_regions(
                 temperature_dict=snakemake.params.forward_temperature_central_heating,
                 onshore_regions=onshore_regions,
-                snapshots=source_inlet_temperature_celsius["time"]
+                snapshots=source_inlet_temperature_celsius["time"],
             )
         )
         return_temperature_central_heating: xr.DataArray = (
             map_temperature_dict_to_onshore_regions(
                 temperature_dict=snakemake.params.return_temperature_central_heating,
                 onshore_regions=onshore_regions,
-                snapshots=source_inlet_temperature_celsius["time"]
+                snapshots=source_inlet_temperature_celsius["time"],
             )
         )