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

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

scripts/build_load_data.py

@@ -77,10 +77,13 @@ def load_timeseries(fn, years, countries, powerstatistics=True):
 
     pattern = "power_statistics" if powerstatistics else "transparency"
     pattern = f"_load_actual_entsoe_{pattern}"
+
     def rename(s):
-        return s[:-len(pattern)]
+        return s[: -len(pattern)]
+
     def date_parser(x):
         return dateutil.parser.parse(x, ignoretz=True)
+
     return (
         pd.read_csv(fn, index_col=0, parse_dates=[0], date_parser=date_parser)
         .filter(like=pattern)

scripts/prepare_sector_network.py

@@ -743,6 +743,7 @@ def prepare_costs(cost_file, config, Nyears):
 
     def annuity_factor(v):
         return annuity(v["lifetime"], v["discount rate"]) + v["FOM"] / 100
+
     costs["fixed"] = [
         annuity_factor(v) * v["investment"] * Nyears for i, v in costs.iterrows()
     ]