diff --git a/doc/blender_file_format/BlendFileDnaExporter_25.py b/doc/blender_file_format/BlendFileDnaExporter_25.py
index 2106f872a40..b8b8d0918ed 100755
--- a/doc/blender_file_format/BlendFileDnaExporter_25.py
+++ b/doc/blender_file_format/BlendFileDnaExporter_25.py
@@ -229,7 +229,7 @@ class DNACatalogHTML:
 
         return structure_field
 
-    def indent(self, input, dent, startswith=''):
+    def indent(self, input, dent):
         output = ''
         if dent < 0:
             for line in input.split('\n'):
diff --git a/doc/python_api/sphinx_doc_gen_monkeypatch.py b/doc/python_api/sphinx_doc_gen_monkeypatch.py
index c8098efa175..9a35d9e3c06 100644
--- a/doc/python_api/sphinx_doc_gen_monkeypatch.py
+++ b/doc/python_api/sphinx_doc_gen_monkeypatch.py
@@ -15,7 +15,7 @@ def main():
     import bpy
     from bpy.types import Operator
 
-    def dummy_func(test):
+    def dummy_func(_test):
         pass
 
     kw_dummy = dict(fget=dummy_func, fset=dummy_func, fdel=dummy_func)
diff --git a/scripts/modules/bpy_restrict_state.py b/scripts/modules/bpy_restrict_state.py
index fc9f1743d35..4fc5247c560 100644
--- a/scripts/modules/bpy_restrict_state.py
+++ b/scripts/modules/bpy_restrict_state.py
@@ -45,6 +45,6 @@ class RestrictBlend:
         _bpy.data = _data_restrict
         _bpy.context = _context_restrict
 
-    def __exit__(self, type, value, traceback):
+    def __exit__(self, _type, _value, _traceback):
         _bpy.data = self.data
         _bpy.context = self.context
diff --git a/scripts/modules/console_python.py b/scripts/modules/console_python.py
index c596311bfe6..6e4d2e7a43f 100644
--- a/scripts/modules/console_python.py
+++ b/scripts/modules/console_python.py
@@ -31,7 +31,7 @@ class _TempModuleOverride:
         self.module = sys.modules.get(self.module_name)
         sys.modules[self.module_name] = self.module_override
 
-    def __exit__(self, type, value, traceback):
+    def __exit__(self, _type, _value, _traceback):
         if self.module is None:
             # Account for removal of `module_override` (albeit unlikely).
             sys.modules.pop(self.module_name, None)
diff --git a/scripts/modules/nodeitems_utils.py b/scripts/modules/nodeitems_utils.py
index e0434e463ac..78c485ef4ef 100644
--- a/scripts/modules/nodeitems_utils.py
+++ b/scripts/modules/nodeitems_utils.py
@@ -99,7 +99,7 @@ _node_categories = {}
 def register_node_categories(identifier, cat_list):
     if identifier in _node_categories:
         raise KeyError("Node categories list '{:s}' already registered".format(identifier))
-        return
+        # return
 
     # works as draw function for menus
     def draw_node_item(self, context):
diff --git a/scripts/modules/rna_xml.py b/scripts/modules/rna_xml.py
index 3a0fcac8ca7..292a666c61a 100644
--- a/scripts/modules/rna_xml.py
+++ b/scripts/modules/rna_xml.py
@@ -350,7 +350,7 @@ def xml2rna(
                         # print(elems)
                         if len(elems) == 1:
                             # sub node named by its type
-                            child_xml_real, = elems
+                            child_xml_real = elems[0]
 
                             # print(child_xml_real, subvalue)
                             xml2rna_node(child_xml_real, subvalue)
diff --git a/scripts/startup/bl_operators/anim.py b/scripts/startup/bl_operators/anim.py
index 6e8e0441a3d..9e1aab6765f 100644
--- a/scripts/startup/bl_operators/anim.py
+++ b/scripts/startup/bl_operators/anim.py
@@ -392,7 +392,7 @@ class UpdateAnimatedTransformConstraint(Operator):
         to_paths = {"to_max_x", "to_max_y", "to_max_z", "to_min_x", "to_min_y", "to_min_z"}
         paths = from_paths | to_paths
 
-        def update_cb(base, class_name, old_path, fcurve, options):
+        def update_cb(base, _class_name, old_path, fcurve, options):
             # print(options)
 
             def handle_deg2rad(fcurve):
diff --git a/scripts/startup/bl_operators/bone_selection_sets.py b/scripts/startup/bl_operators/bone_selection_sets.py
index b23e56b6202..af6e77b500a 100644
--- a/scripts/startup/bl_operators/bone_selection_sets.py
+++ b/scripts/startup/bl_operators/bone_selection_sets.py
@@ -174,7 +174,7 @@ class POSE_OT_selection_set_assign(_PoseModeOnlyMixin, Operator):
     bl_description = "Add selected bones to Selection Set"
     bl_options = {'UNDO', 'REGISTER'}
 
-    def invoke(self, context, event):
+    def invoke(self, context, _event):
         arm = context.object
 
         if not (arm.active_selection_set < len(arm.selection_sets)):
diff --git a/scripts/startup/bl_operators/uvcalc_transform.py b/scripts/startup/bl_operators/uvcalc_transform.py
index bcdc593e4a8..6a627e4e366 100644
--- a/scripts/startup/bl_operators/uvcalc_transform.py
+++ b/scripts/startup/bl_operators/uvcalc_transform.py
@@ -217,7 +217,7 @@ def align_uv_rotation_island(bm, uv_layer, faces, method, axis, aspect_y):
     return True
 
 
-def align_uv_rotation_bmesh(mesh, bm, method, axis, aspect_y):
+def align_uv_rotation_bmesh(bm, method, axis, aspect_y):
     import bpy_extras.bmesh_utils
 
     uv_layer = bm.loops.layers.uv.active
@@ -260,7 +260,7 @@ def align_uv_rotation(context, method, axis, correct_aspect):
     for ob in ob_list:
         bm = bmesh.from_edit_mesh(ob.data)
         if bm.loops.layers.uv:
-            if align_uv_rotation_bmesh(ob.data, bm, method, axis, aspect_y):
+            if align_uv_rotation_bmesh(bm, method, axis, aspect_y):
                 bmesh.update_edit_mesh(ob.data)
 
     return {'FINISHED'}
diff --git a/scripts/startup/bl_ui/__init__.py b/scripts/startup/bl_ui/__init__.py
index 40ec518b7ac..bdc032ee7d9 100644
--- a/scripts/startup/bl_ui/__init__.py
+++ b/scripts/startup/bl_ui/__init__.py
@@ -266,7 +266,7 @@ class UI_MT_list_item_context_menu(bpy.types.Menu):
     bl_label = "List Item"
     bl_idname = "UI_MT_list_item_context_menu"
 
-    def draw(self, context):
+    def draw(self, _context):
         # Dummy function. This type is just for scripts to append their own
         # context menu items.
         pass
@@ -282,7 +282,7 @@ class UI_MT_button_context_menu(bpy.types.Menu):
     bl_label = "List Item"
     bl_idname = "UI_MT_button_context_menu"
 
-    def draw(self, context):
+    def draw(self, _context):
         # Draw menu entries created with the legacy `WM_MT_button_context` class.
         # This is deprecated, and support will be removed in a future release.
         if hasattr(bpy.types, "WM_MT_button_context"):
diff --git a/scripts/startup/bl_ui/anim.py b/scripts/startup/bl_ui/anim.py
index f3f9d61de40..b91f66e871f 100644
--- a/scripts/startup/bl_ui/anim.py
+++ b/scripts/startup/bl_ui/anim.py
@@ -8,7 +8,7 @@ from bpy.types import Menu
 class ANIM_MT_keyframe_insert_pie(Menu):
     bl_label = "Keyframe Insert Pie"
 
-    def draw(self, context):
+    def draw(self, _context):
         layout = self.layout
         pie = layout.menu_pie()
 
diff --git a/scripts/startup/bl_ui/properties_data_armature.py b/scripts/startup/bl_ui/properties_data_armature.py
index 66ac64411db..67eb9974a85 100644
--- a/scripts/startup/bl_ui/properties_data_armature.py
+++ b/scripts/startup/bl_ui/properties_data_armature.py
@@ -379,7 +379,7 @@ class POSE_PT_selection_sets(Panel):
 
 
 class POSE_UL_selection_set(UIList):
-    def draw_item(self, context, layout, data, item, icon, active_data, active_propname, index):
+    def draw_item(self, _context, layout, _data, item, icon, _active_data, _active_propname, _index):
         row = layout.row()
         row.prop(item, "name", text="", emboss=False)
         if self.layout_type in ('DEFAULT', 'COMPACT'):
@@ -389,7 +389,7 @@ class POSE_UL_selection_set(UIList):
 class POSE_MT_selection_set_create(Menu):
     bl_label = "Choose Selection Set"
 
-    def draw(self, context):
+    def draw(self, _context):
         layout = self.layout
         layout.operator("pose.selection_set_add_and_assign",
                         text="New Selection Set")
diff --git a/scripts/startup/bl_ui/properties_data_modifier.py b/scripts/startup/bl_ui/properties_data_modifier.py
index 5990186ad57..d00e4aa839e 100644
--- a/scripts/startup/bl_ui/properties_data_modifier.py
+++ b/scripts/startup/bl_ui/properties_data_modifier.py
@@ -294,7 +294,7 @@ class AddModifierMenu(Operator):
             return False
         return space and space.type == 'PROPERTIES' and space.context == 'MODIFIER'
 
-    def invoke(self, context, event):
+    def invoke(self, _context, _event):
         return bpy.ops.wm.call_menu(name="OBJECT_MT_modifier_add")
 
 
diff --git a/scripts/startup/bl_ui/properties_grease_pencil_common.py b/scripts/startup/bl_ui/properties_grease_pencil_common.py
index 89faed1fd82..d9d3a10e209 100644
--- a/scripts/startup/bl_ui/properties_grease_pencil_common.py
+++ b/scripts/startup/bl_ui/properties_grease_pencil_common.py
@@ -785,7 +785,7 @@ class GREASE_PENCIL_MT_draw_delete(Menu):
 class GREASE_PENCIL_MT_stroke_simplify(Menu):
     bl_label = "Simplify Stroke"
 
-    def draw(self, context):
+    def draw(self, _context):
         layout = self.layout
         layout.operator("grease_pencil.stroke_simplify", text="Fixed").mode = 'FIXED'
         layout.operator("grease_pencil.stroke_simplify", text="Adaptive").mode = 'ADAPTIVE'
diff --git a/scripts/startup/bl_ui/properties_workspace.py b/scripts/startup/bl_ui/properties_workspace.py
index eebfcde39cc..08318e1c3e6 100644
--- a/scripts/startup/bl_ui/properties_workspace.py
+++ b/scripts/startup/bl_ui/properties_workspace.py
@@ -149,7 +149,7 @@ class WORKSPACE_UL_addons_items(UIList):
             indices = self._sort_addons_by_category_name(addons)
         return flags, indices
 
-    def draw_item(self, context, layout, _data, addon, icon, _active_data, _active_propname, _index):
+    def draw_item(self, context, layout, _data, addon, _icon, _active_data, _active_propname, _index):
         row = layout.row()
         row.active = context.workspace.use_filter_by_owner
         row.emboss = 'NONE'
diff --git a/scripts/startup/bl_ui/space_statusbar.py b/scripts/startup/bl_ui/space_statusbar.py
index bbe76197f0a..a537446bb31 100644
--- a/scripts/startup/bl_ui/space_statusbar.py
+++ b/scripts/startup/bl_ui/space_statusbar.py
@@ -8,7 +8,7 @@ from bpy.types import Header
 class STATUSBAR_HT_header(Header):
     bl_space_type = 'STATUSBAR'
 
-    def draw(self, context):
+    def draw(self, _context):
         layout = self.layout
 
         # input status
diff --git a/scripts/startup/bl_ui/space_view3d_toolbar.py b/scripts/startup/bl_ui/space_view3d_toolbar.py
index 3b1decdebc3..2464f037c66 100644
--- a/scripts/startup/bl_ui/space_view3d_toolbar.py
+++ b/scripts/startup/bl_ui/space_view3d_toolbar.py
@@ -610,7 +610,7 @@ class VIEW3D_PT_slots_paint_canvas(SelectPaintSlotHelper, View3DPanel, Panel):
     def get_mode_settings(self, context):
         return context.tool_settings.paint_mode
 
-    def draw_image_interpolation(self, **kwargs):
+    def draw_image_interpolation(self, **_kwargs):
         pass
 
     def draw_header(self, context):
diff --git a/tools/check_blender_release/check_release.py b/tools/check_blender_release/check_release.py
index d1a45c56d4e..cd4358c00fb 100755
--- a/tools/check_blender_release/check_release.py
+++ b/tools/check_blender_release/check_release.py
@@ -15,6 +15,9 @@ from check_utils import sliceCommandLineArguments
 
 
 def load_tests(loader, standard_tests, pattern):
+    # Unused.
+    del pattern
+
     standard_tests.addTests(loader.loadTestsFromTestCase(
         check_module_enabled.UnitTesting))
     standard_tests.addTests(loader.loadTestsFromTestCase(
diff --git a/tools/check_source/check_cmake_consistency.py b/tools/check_source/check_cmake_consistency.py
index 3b9fc741ea4..dce5c30fcb3 100755
--- a/tools/check_source/check_cmake_consistency.py
+++ b/tools/check_source/check_cmake_consistency.py
@@ -5,6 +5,10 @@
 
 # Note: this code should be cleaned up / refactored.
 
+__all__ = (
+    "main",
+)
+
 import sys
 if sys.version_info.major < 3:
     print("\nPython3.x needed, found %s.\nAborting!\n" %
@@ -51,7 +55,7 @@ for k, v in IGNORE_SOURCE_MISSING_FLAT:
 del IGNORE_SOURCE_MISSING_FLAT
 
 
-def replace_line(f: str, i: int, text: str, keep_indent: bool = True) -> None:
+def replace_line(f: str, i: int, text: str) -> None:
     file_handle = open(f, 'r')
     data = file_handle.readlines()
     file_handle.close()
@@ -95,12 +99,15 @@ def is_c(filename: str) -> bool:
     return (ext in {".c", ".cpp", ".cxx", ".m", ".mm", ".rc", ".cc", ".inl", ".metal", ".msl"})
 
 
-def is_c_any(filename: str) -> bool:
-    return is_c(filename) or is_c_header(filename)
+# def is_c_any(filename: str) -> bool:
+#     return is_c(filename) or is_c_header(filename)
 
 
 def cmake_get_src(f: str) -> None:
 
+    # TODO: only partially implemented, needs work.
+    do_replace_text = False
+
     sources_h = []
     sources_c = []
 
@@ -272,8 +279,9 @@ def cmake_get_src(f: str) -> None:
                             if new_path_rel != l:
                                 print("overly relative path:\n  %s:%d\n  %s\n  %s" % (f, line_number, l, new_path_rel))
 
-                                # # Save time. just replace the line
-                                # replace_line(f, line_number - 1, new_path_rel)
+                                # Save time. just replace the line.
+                                if do_replace_text:
+                                    replace_line(f, line_number - 1, new_path_rel)
 
                         else:
                             raise Exception("non existent include %s:%d -> %s" % (f, line_number, new_file))
diff --git a/tools/check_source/check_unused_defines.py b/tools/check_source/check_unused_defines.py
index dce19f38dbc..9ddd5116da1 100755
--- a/tools/check_source/check_unused_defines.py
+++ b/tools/check_source/check_unused_defines.py
@@ -48,12 +48,13 @@ def remove_comments(string: str) -> str:
     regex = re.compile(pattern, re.MULTILINE | re.DOTALL)
 
     def _replacer(m: re.Match[str]) -> str:
-        # if the 2nd group (capturing comments) is not None,
-        # it means we have captured a non-quoted (real) comment string.
+        # If the 2nd group (capturing comments) is not None,
+        # It means we have captured a non-quoted (real) comment string.
         if m.group(2) is not None:
-            return ""  # so we will return empty to remove the comment
-        else:  # otherwise, we will return the 1st group
-            return m.group(1)  # capture
+            # So we will return empty to remove the comment.
+            return ""
+        # Otherwise, we will return the 1st group.
+        return m.group(1)  # capture
     return regex.sub(_replacer, string)
 
 
@@ -69,8 +70,7 @@ def extract_terms(fn: str, data_src: str) -> None:
     for m in re_defines.finditer(data_src_nocomments):
         defines[m.group(1)] = fn
 
-    # Don't edit the file.
-    return None
+    # Returning None indicates the file is not edited.
 
 
 def main() -> int:
diff --git a/tools/modules/blendfile.py b/tools/modules/blendfile.py
index c1b854a7d21..1166a6c345c 100644
--- a/tools/modules/blendfile.py
+++ b/tools/modules/blendfile.py
@@ -101,7 +101,7 @@ class BlendFile:
     def __enter__(self):
         return self
 
-    def __exit__(self, type, value, traceback):
+    def __exit__(self, _type, _value, _traceback):
         self.close()
 
     def find_blocks_from_code(self, code):
@@ -594,7 +594,7 @@ class BlendFileRaw:
     def __enter__(self):
         return self
 
-    def __exit__(self, type, value, traceback):
+    def __exit__(self, _type, _value, _traceback):
         self.close()
 
     def find_blocks_from_code(self, code):
diff --git a/tools/utils/blender_theme_as_c.py b/tools/utils/blender_theme_as_c.py
index 29a97258aca..16537f95881 100755
--- a/tools/utils/blender_theme_as_c.py
+++ b/tools/utils/blender_theme_as_c.py
@@ -174,7 +174,7 @@ def is_ignore_dna_name(name):
         return False
 
 
-def write_member(fw, indent, b, theme, ls):
+def write_member(fw, indent, _blend, _theme, ls):
     path_old = ()
 
     for key, value in ls:
diff --git a/tools/utils/gdb_struct_repr_c99.py b/tools/utils/gdb_struct_repr_c99.py
index 41ab044350c..d93124d1f03 100644
--- a/tools/utils/gdb_struct_repr_c99.py
+++ b/tools/utils/gdb_struct_repr_c99.py
@@ -30,7 +30,7 @@ class PrintStructC99(gdb.Command):
         first_line = string.split('\n')[0]
         return first_line.split('=')[1][:-1].strip()
 
-    def invoke(self, arg, from_tty):
+    def invoke(self, arg, _from_tty):
         ret_ptype = gdb.execute('ptype {}'.format(arg), to_string=True)
         tname = self.extract_typename(ret_ptype)
         print('{} {} = {{'.format(tname, arg))
diff --git a/tools/utils/make_cursor_gui.py b/tools/utils/make_cursor_gui.py
index a63a7c47bc2..8001e69dc14 100755
--- a/tools/utils/make_cursor_gui.py
+++ b/tools/utils/make_cursor_gui.py
@@ -292,7 +292,7 @@ class App:
 def main() -> int:
     root = Tk()
 
-    app = App(root)
+    _app = App(root)
     root.title("Cursor Maker")
 
     root.mainloop()
diff --git a/tools/utils_maintenance/code_clean.py b/tools/utils_maintenance/code_clean.py
index 9387dae9f4d..1ff237f6f90 100755
--- a/tools/utils_maintenance/code_clean.py
+++ b/tools/utils_maintenance/code_clean.py
@@ -449,7 +449,7 @@ class EditGenerator:
     def edit_list_from_file(_source: str, _data: str, _shared_edit_data: Any) -> list[Edit]:
         # The `__init_subclass__` function ensures this is always overridden.
         raise RuntimeError("This function must be overridden by it's subclass!")
-        return []
+        # return []
 
     @staticmethod
     def setup() -> Any: