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

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

scripts/make_summary_perfect.py

@@ -30,13 +30,14 @@ opt_name = {"Store": "e", "Line": "s", "Transformer": "s"}
 
 def reindex_columns(df, cols):
     investments = cols.levels[3]
-    if len(cols.names)!=len(df.columns.levels):
+    if len(cols.names) != len(df.columns.levels):
         df = pd.concat([df] * len(investments), axis=1)
         df.columns = cols
     df = df.reindex(cols, axis=1)
 
     return df
 
+
 def calculate_costs(n, label, costs):
     investments = n.investment_periods
     cols = pd.MultiIndex.from_product(