diff --git a/scripts/build_industry_demand.py b/scripts/build_industry_demand.py
index fde2bdc4..db22f9d5 100644
--- a/scripts/build_industry_demand.py
+++ b/scripts/build_industry_demand.py
@@ -349,4 +349,4 @@ def match_technology(df):
 
     nodal_df.to_csv(
         snakemake.output.industrial_energy_demand_per_node, float_format="%.2f"
-    )
\ No newline at end of file
+    )
diff --git a/scripts/prepare_sector_network.py b/scripts/prepare_sector_network.py
index 6c7fdf2d..02f76fe4 100644
--- a/scripts/prepare_sector_network.py
+++ b/scripts/prepare_sector_network.py
@@ -54,7 +54,7 @@ def add_carrier_buses(n, carrier, nodes=None):
     if not isinstance(nodes, pd.Index):
         nodes = pd.Index(nodes)
 
-    n.add("Carrier", carrier) #, co2_emissions=costs.at[carrier, "CO2 intensity"])
+    n.add("Carrier", carrier)  # , co2_emissions=costs.at[carrier, "CO2 intensity"])
 
     n.madd("Bus", nodes, location=location, carrier=carrier)
 
@@ -2675,11 +2675,10 @@ def add_rail_transport(n, costs):
 
     # Add location. TODO: move it into pypsa-earth
     n.buses.location = n.buses.index
-    
-    # Change the carrier name of oil powerplants so include it in the emission counting
-    n.carriers = n.carriers.rename({"oil": "oil EOP"}) 
-    n.generators['carrier'].replace("oil", "oil EOP", inplace=True)
 
+    # Change the carrier name of oil powerplants so include it in the emission counting
+    n.carriers = n.carriers.rename({"oil": "oil EOP"})
+    n.generators["carrier"].replace("oil", "oil EOP", inplace=True)
 
     # Set carrier of AC loads
     n.loads.loc[nodes, "carrier"] = "AC"