diff --git a/src/miv_simulator/cells.py b/src/miv_simulator/cells.py
index 057e4de..f915f33 100644
--- a/src/miv_simulator/cells.py
+++ b/src/miv_simulator/cells.py
@@ -1786,9 +1786,9 @@ def init_circuit_context(
                         cell_weights_dict,
                     ) in cell_weights_iter:
                         assert cell_weights_gid == gid
-                        cell_weights_dicts[weights_namespace] = (
-                            cell_weights_dict
-                        )
+                        cell_weights_dicts[
+                            weights_namespace
+                        ] = cell_weights_dict
 
             else:
                 raise RuntimeError(
diff --git a/src/miv_simulator/network.py b/src/miv_simulator/network.py
index b677440..002906a 100644
--- a/src/miv_simulator/network.py
+++ b/src/miv_simulator/network.py
@@ -388,9 +388,9 @@ def connect_cells(env: Env) -> None:
                     lambda edgeset: presyn_input_sources.update(edgeset[1][0]),
                     edge_iter,
                 )
-                env.microcircuit_input_sources[presyn_name] = (
-                    presyn_input_sources
-                )
+                env.microcircuit_input_sources[
+                    presyn_name
+                ] = presyn_input_sources
             else:
                 syn_edge_iter = edge_iter
             syn_attrs.init_edge_attrs_from_iter(
@@ -739,9 +739,9 @@ def connect_cell_selection(env):
                 syn_attrs.init_edge_attrs_from_iter(
                     postsyn_name, presyn_name, a, syn_edge_iter
                 )
-                env.microcircuit_input_sources[presyn_name] = (
-                    presyn_input_sources
-                )
+                env.microcircuit_input_sources[
+                    presyn_name
+                ] = presyn_input_sources
                 del graph[postsyn_name][presyn_name]
 
         first_gid = None