diff --git a/tardis/io/atom_data/base.py b/tardis/io/atom_data/base.py
index c9a4883a9ba..76fc424a3c4 100644
--- a/tardis/io/atom_data/base.py
+++ b/tardis/io/atom_data/base.py
@@ -546,9 +546,9 @@ def prepare_continuum_interaction_data(self, continuum_interaction_species):
         )
 
         level_idxs2continuum_idx = self.photo_ion_levels_idx.copy()
-        level_idxs2continuum_idx["continuum_idx"] = (
-            self.level2continuum_edge_idx
-        )
+        level_idxs2continuum_idx[
+            "continuum_idx"
+        ] = self.level2continuum_edge_idx
         self.level_idxs2continuum_idx = level_idxs2continuum_idx.set_index(
             ["source_level_idx", "destination_level_idx"]
         )
@@ -582,33 +582,31 @@ def prepare_macro_atom_data(
                 self.macro_atom_references = self.macro_atom_references.loc[
                     self.macro_atom_references["count_down"] > 0
                 ]
-                self.macro_atom_references.loc[:, "count_total"] = (
-                    self.macro_atom_references["count_down"]
-                )
-                self.macro_atom_references.loc[:, "block_references"] = (
-                    np.hstack(
-                        (
-                            0,
-                            np.cumsum(
-                                self.macro_atom_references["count_down"].values[
-                                    :-1
-                                ]
-                            ),
-                        )
+                self.macro_atom_references.loc[
+                    :, "count_total"
+                ] = self.macro_atom_references["count_down"]
+                self.macro_atom_references.loc[
+                    :, "block_references"
+                ] = np.hstack(
+                    (
+                        0,
+                        np.cumsum(
+                            self.macro_atom_references["count_down"].values[:-1]
+                        ),
                     )
                 )
 
             elif line_interaction_type == "macroatom":
-                self.macro_atom_references.loc[:, "block_references"] = (
-                    np.hstack(
-                        (
-                            0,
-                            np.cumsum(
-                                self.macro_atom_references[
-                                    "count_total"
-                                ].values[:-1]
-                            ),
-                        )
+                self.macro_atom_references.loc[
+                    :, "block_references"
+                ] = np.hstack(
+                    (
+                        0,
+                        np.cumsum(
+                            self.macro_atom_references["count_total"].values[
+                                :-1
+                            ]
+                        ),
                     )
                 )
 
@@ -726,12 +724,12 @@ def _init_indices(self):
                 & (self.lines.ion_number == species[1])
             )
             self.lines_idx[species] = lines_idx
-            self.lines_level_number_lower[species] = (
-                self.lines.level_number_lower.values[lines_idx].astype(int)
-            )
-            self.lines_level_number_upper[species] = (
-                self.lines.level_number_upper.values[lines_idx].astype(int)
-            )
+            self.lines_level_number_lower[
+                species
+            ] = self.lines.level_number_lower.values[lines_idx].astype(int)
+            self.lines_level_number_upper[
+                species
+            ] = self.lines.level_number_upper.values[lines_idx].astype(int)
 
             self.A_uls[species] = self.atom_data.lines.A_ul.values[lines_idx]
             self.B_uls[species] = self.atom_data.lines.B_ul.values[lines_idx]
@@ -766,9 +764,9 @@ def _create_collision_coefficient_matrix(self):
                 line,
             ) in collision_group.get_group(species).iterrows():
                 # line.columns : delta_e, g_ratio, temperatures ...
-                C_ul_matrix[level_number_lower, level_number_upper, :] = (
-                    line.values[2:]
-                )
+                C_ul_matrix[
+                    level_number_lower, level_number_upper, :
+                ] = line.values[2:]
                 delta_E_matrix[level_number_lower, level_number_upper] = line[
                     "delta_e"
                 ]