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

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

scripts/helpers.py

@@ -747,12 +747,15 @@ def read_csv_nafix(file, **kwargs):
     else:
         return pd.DataFrame()
 
+
 def safe_divide(numerator, denominator):
     """
     Safe division function that returns NaN when the denominator is zero
     """
-    if (denominator != 0.0):
+    if denominator != 0.0:
         return numerator / denominator
     else:
-        logging.warning(f"Division by zero: {numerator} / {denominator}, returning NaN.")
+        logging.warning(
+            f"Division by zero: {numerator} / {denominator}, returning NaN."
+        )
         return np.nan

scripts/prepare_sector_network.py

@@ -16,9 +16,9 @@
     mock_snakemake,
     override_component_attrs,
     prepare_costs,
+    safe_divide,
     three_2_two_digits_country,
     two_2_three_digits_country,
-    safe_divide,
 )
 from prepare_transport_data import prepare_transport_data
 
@@ -2230,12 +2230,24 @@ def add_residential(n, costs):
         )
 
         heat_buses = (n.loads_t.p_set.filter(regex="heat").filter(like=country)).columns
-
-        n.loads_t.p_set.loc[:, heat_buses] = ( 
-            safe_divide(n.loads_t.p_set.filter(like=country)[heat_buses], n.loads_t.p_set.filter(like=country)[heat_buses].sum().sum())
+
+        n.loads_t.p_set.loc[:, heat_buses] = (
+            (
+                safe_divide(
+                    n.loads_t.p_set.filter(like=country)[heat_buses],
+                    n.loads_t.p_set.filter(like=country)[heat_buses].sum().sum(),
+                )
                 * rem_heat_demand
                 * 1e6
-        ) if not np.isnan(safe_divide(n.loads_t.p_set.filter(like=country)[heat_buses], n.loads_t.p_set.filter(like=country)[heat_buses].sum().sum())) else 0.0
+            )
+            if not np.isnan(
+                safe_divide(
+                    n.loads_t.p_set.filter(like=country)[heat_buses],
+                    n.loads_t.p_set.filter(like=country)[heat_buses].sum().sum(),
+                )
+            )
+            else 0.0
+        )
 
         # if snakemake.config["custom_data"]["elec_demand"]:
     for country in countries: