Remove dead code from scene.py and vector_space_scene.py (#4310)

Author: henrikmidtiby

manim/scene/scene.py

@@ -13,7 +13,6 @@
 import random
 import threading
 import time
-import types
 from queue import Queue
 
 import srt
@@ -127,8 +126,6 @@ def __init__(
         self.widgets = []
         self.dearpygui_imported = dearpygui_imported
         self.updaters = []
-        self.point_lights = []
-        self.ambient_light = None
         self.key_to_function_map = {}
         self.mouse_press_callbacks = []
         self.interactive_mode = False
@@ -175,52 +172,7 @@ def __deepcopy__(self, clone_from_id):
             if k == "camera_class":
                 setattr(result, k, v)
             setattr(result, k, copy.deepcopy(v, clone_from_id))
-        result.mobject_updater_lists = []
 
-        # Update updaters
-        for mobject in self.mobjects:
-            cloned_updaters = []
-            for updater in mobject.updaters:
-                # Make the cloned updater use the cloned Mobjects as free variables
-                # rather than the original ones. Analyzing function bytecode with the
-                # dis module will help in understanding this.
-                # https://docs.python.org/3/library/dis.html
-                # TODO: Do the same for function calls recursively.
-                free_variable_map = inspect.getclosurevars(updater).nonlocals
-                cloned_co_freevars = []
-                cloned_closure = []
-                for free_variable_name in updater.__code__.co_freevars:
-                    free_variable_value = free_variable_map[free_variable_name]
-
-                    # If the referenced variable has not been cloned, raise.
-                    if id(free_variable_value) not in clone_from_id:
-                        raise Exception(
-                            f"{free_variable_name} is referenced from an updater "
-                            "but is not an attribute of the Scene, which isn't "
-                            "allowed.",
-                        )
-
-                    # Add the cloned object's name to the free variable list.
-                    cloned_co_freevars.append(free_variable_name)
-
-                    # Add a cell containing the cloned object's reference to the
-                    # closure list.
-                    cloned_closure.append(
-                        types.CellType(clone_from_id[id(free_variable_value)]),
-                    )
-
-                cloned_updater = types.FunctionType(
-                    updater.__code__.replace(co_freevars=tuple(cloned_co_freevars)),
-                    updater.__globals__,
-                    updater.__name__,
-                    updater.__defaults__,
-                    tuple(cloned_closure),
-                )
-                cloned_updaters.append(cloned_updater)
-            mobject_clone = clone_from_id[id(mobject)]
-            mobject_clone.updaters = cloned_updaters
-            if len(cloned_updaters) > 0:
-                result.mobject_updater_lists.append((mobject_clone, cloned_updaters))
         return result
 
     def render(self, preview: bool = False):

manim/scene/vector_space_scene.py

@@ -79,7 +79,7 @@ def add_plane(self, animate: bool = False, **kwargs):
         self.add(plane)
         return plane
 
-    def add_axes(self, animate: bool = False, color: bool = WHITE, **kwargs):
+    def add_axes(self, animate: bool = False, color: bool = WHITE):
         """
         Adds a pair of Axes to the Scene.