[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

scripts/build_retro_cost.py

@@ -836,8 +836,9 @@ def calculate_heat_losses(u_values, data_tabula, l_strength, temperature_factor)
     F_red_temp = map_to_lstrength(l_strength, F_red_temp)
 
     Q_ht = (
-        heat_transfer_perm2.T.groupby(level=1).sum().T
-        .mul(F_red_temp.droplevel(0, axis=1))
+        heat_transfer_perm2.T.groupby(level=1)
+        .sum()
+        .T.mul(F_red_temp.droplevel(0, axis=1))
         .mul(temperature_factor.reindex(heat_transfer_perm2.index, level=0), axis=0)
     )
 

scripts/prepare_sector_network.py

@@ -1725,14 +1725,16 @@ def add_heat(n, costs):
                 heat_load = (
                     heat_demand[[sector + " water", sector + " space"]]
                     .T.groupby(level=1)
-                    .sum().T[nodes[name]]
+                    .sum()
+                    .T[nodes[name]]
                     .multiply(factor)
                 )
 
         if name == "urban central":
             heat_load = (
                 heat_demand.T.groupby(level=1)
-                .sum().T[nodes[name]]
+                .sum()
+                .T[nodes[name]]
                 .multiply(
                     factor * (1 + options["district_heating"]["district_heating_loss"])
                 )