diff --git a/floogen/model/graph.py b/floogen/model/graph.py
index e9424030..3544e613 100644
--- a/floogen/model/graph.py
+++ b/floogen/model/graph.py
@@ -194,6 +194,7 @@ def add_nodes_as_tree(
         tree: List[int],
         node_type: str,
         edge_type: str,
+        *,
         lvl: int = 0,
         node_obj=None,
         edge_obj=None,
@@ -213,7 +214,14 @@ def add_nodes_as_tree(
                     node, parent, type=edge_type, obj=edge_obj, src_dir=None, dst_dir=None
                 )
             self.add_nodes_as_tree(
-                node, tree, node_type, edge_type, lvl + 1, node_obj, edge_obj, connect
+                node,
+                tree,
+                node_type,
+                edge_type,
+                lvl=lvl + 1,
+                node_obj=node_obj,
+                edge_obj=edge_obj,
+                connect=connect,
             )
 
     def add_nodes_as_array(
@@ -221,6 +229,7 @@ def add_nodes_as_array(
         name: str,
         array: Tuple[int],
         node_type: str,
+        *,
         edge_type: str = "",
         node_obj=None,
         edge_obj=None,
diff --git a/util/gen_jobs.py b/util/gen_jobs.py
index 877638fb..4a2a669c 100755
--- a/util/gen_jobs.py
+++ b/util/gen_jobs.py
@@ -38,6 +38,7 @@ def gen_job_str(
     length: int,
     src_addr: int,
     dst_addr: int,
+    *,
     max_src_burst_size: int = 256,
     max_dst_burst_size: int = 256,
     r_aw_decouple: bool = False,
@@ -101,7 +102,7 @@ def gen_nw_chimney2chimney_traffic(
     bidir: bool,
     out_dir: str
 ):
-    # pylint: disable=too-many-arguments
+    # pylint: disable=too-many-arguments, too-many-positional-arguments
     """Generate Narrow Wide Chimney to Chimney traffic."""
     num_masters = 2
     for i in range(num_masters):
@@ -131,7 +132,7 @@ def gen_mesh_traffic(
     out_dir: str,
     **_kwargs
 ):
-    # pylint: disable=too-many-arguments, too-many-locals, too-many-branches, too-many-statements
+    # pylint: disable=too-many-arguments, too-many-locals, too-many-branches, too-many-statements, too-many-positional-arguments
     """Generate Mesh traffic."""
     for x in range(0, NUM_X):
         for y in range(0, NUM_Y):