diff --git a/pyaedt/generic/plot.py b/pyaedt/generic/plot.py
index 8e60c47ed5b..d9328a88958 100644
--- a/pyaedt/generic/plot.py
+++ b/pyaedt/generic/plot.py
@@ -1191,7 +1191,6 @@ def _read_mesh_files(self, read_frames=False):
                         field.is_vector = False
                     field.log = log1
                 else:
-                    points = []
                     nodes = []
                     values = []
                     is_vector = False
diff --git a/pyaedt/generic/toolkit.py b/pyaedt/generic/toolkit.py
index 4705347371d..0d984890f80 100644
--- a/pyaedt/generic/toolkit.py
+++ b/pyaedt/generic/toolkit.py
@@ -121,7 +121,6 @@
 
 from System.Windows.Media.Imaging import BitmapImage, BitmapCacheOption, BitmapCreateOptions
 from System import Uri, UriKind, Environment
-from System.Windows.Media.Imaging import BitmapImage
 
 
 @pyaedt_function_handler()
@@ -200,6 +199,7 @@ def copy_files_mkdir(root, files_in_subdir):
     Returns
     -------
     bool
+        ``True`` when successful, ``False`` when failed.
     """
     if not os.path.exists(root):
         os.mkdir(root)
diff --git a/pyaedt/icepak.py b/pyaedt/icepak.py
index 5e4cfd05563..ad79e99ecf0 100644
--- a/pyaedt/icepak.py
+++ b/pyaedt/icepak.py
@@ -1489,9 +1489,9 @@ def assign_em_losses(
 
         >>> oModule.AssignEMLoss
         """
-        if surface_objects == None:
+        if surface_objects is None:
             surface_objects = []
-        if object_list == None:
+        if object_list is None:
             object_list = []
 
         self.logger.info("Mapping HFSS EM losses.")
diff --git a/pyaedt/maxwell.py b/pyaedt/maxwell.py
index 4af9e9c874a..92e50ed2ab7 100644
--- a/pyaedt/maxwell.py
+++ b/pyaedt/maxwell.py
@@ -239,7 +239,7 @@ def assign_matrix(
                 self.logger.info("Infinite is the only return path option in EddyCurrent")
                 return_path = ["infinite"] * len(sources)
 
-        if not self.solution_type in ["Transient", "ElectricTransient"]:
+        if self.solution_type not in ["Transient", "ElectricTransient"]:
             if not matrix_name:
                 matrix_name = generate_unique_name("Matrix")
             if not turns or len(sources) != len(self.modeler.convert_to_selections(turns, True)):
diff --git a/pyaedt/modules/report_templates.py b/pyaedt/modules/report_templates.py
index 58cb160320a..032c0190b59 100644
--- a/pyaedt/modules/report_templates.py
+++ b/pyaedt/modules/report_templates.py
@@ -1998,11 +1998,11 @@ def __init__(self, app, report_type, setup_name):
         self.domain = "Sweep"
         self.primary_sweep = "Phi"
         self.secondary_sweep = "Theta"
-        if not "Phi" in self.variations:
+        if "Phi" not in self.variations:
             self.variations["Phi"] = ["All"]
-        if not "Theta" in self.variations:
+        if "Theta" not in self.variations:
             self.variations["Theta"] = ["All"]
-        if not "Freq" in self.variations:
+        if "Freq" not in self.variations:
             self.variations["Freq"] = ["Nominal"]
 
     @property