diff --git a/ogcore/output_plots.py b/ogcore/output_plots.py
index 99b43b45a..fdc07a224 100644
--- a/ogcore/output_plots.py
+++ b/ogcore/output_plots.py
@@ -76,7 +76,9 @@ def plot_aggregates(
         assert reform_tpi is not None
     fig1, ax1 = plt.subplots()
     for i, v in enumerate(var_list):
-        assert v in VAR_LABELS.keys(), "{} is not in the list of variable labels".format(v)
+        assert (
+            v in VAR_LABELS.keys()
+        ), "{} is not in the list of variable labels".format(v)
         if plot_type == "pct_diff":
             if v in ["r_gov", "r", "r_p"]:
                 # Compute just percentage point changes for rates
@@ -238,7 +240,9 @@ def plot_industry_aggregates(
         assert reform_tpi is not None
     fig1, ax1 = plt.subplots()
     for i, v in enumerate(var_list):
-        assert v in VAR_LABELS.keys(), "{} is not in the list of variable labels".format(v)
+        assert (
+            v in VAR_LABELS.keys()
+        ), "{} is not in the list of variable labels".format(v)
         if len(var_list) == 1:
             var_label = ""
         else:
@@ -451,7 +455,9 @@ def plot_gdp_ratio(
     start_index = start_year - base_params.start_year
     fig1, ax1 = plt.subplots()
     for i, v in enumerate(var_list):
-        assert v in ToGDP_LABELS.keys(), "{} is not in the list of variable labels".format(v)
+        assert (
+            v in ToGDP_LABELS.keys()
+        ), "{} is not in the list of variable labels".format(v)
         if plot_type == "levels":
             plot_var_base = (
                 base_tpi[v][: base_params.T] / base_tpi["Y"][: base_params.T]
diff --git a/ogcore/parameter_tables.py b/ogcore/parameter_tables.py
index 4e9a392cd..dbaa75d2d 100644
--- a/ogcore/parameter_tables.py
+++ b/ogcore/parameter_tables.py
@@ -194,7 +194,9 @@ def param_table(p, table_format="tex", path=None):
         value = getattr(p, k)
         if hasattr(value, "__len__") & ~isinstance(value, str):
             if value.ndim > 1:
-                report = "Too large to report here, see default parameters JSON"
+                report = (
+                    "Too large to report here, see default parameters JSON"
+                )
             else:
                 report = (
                     "["