Allow selection of all scenes to render using '*' (#4470)

* added option to render all scenes by typing '*' when prompted

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: NightyStudios

manim/constants.py

@@ -84,7 +84,7 @@
 """
 CHOOSE_NUMBER_MESSAGE = """
 Choose number corresponding to desired scene/arguments.
-(Use comma separated list for multiple entries)
+(Use comma separated list for multiple entries or use "*" to select all scenes.)
 Choice(s): """
 INVALID_NUMBER_MESSAGE = "Invalid scene numbers have been specified. Aborting."
 NO_SCENE_MESSAGE = """

manim/utils/module_ops.py

@@ -121,12 +121,18 @@ def prompt_user_for_choice(scene_classes: list[type[Scene]]) -> list[type[Scene]
         user_input = console.input(
             f"[log.message] {CHOOSE_NUMBER_MESSAGE} [/log.message]",
         )
-        scene_classes = [
-            num_to_class[int(num_str)]
-            for num_str in re.split(r"\s*,\s*", user_input.strip())
+
+        if user_input == "*":
+            selected_scenes_classes = scene_classes
+        else:
+            selected_scenes_classes = [
+                num_to_class[int(num_str)]
+                for num_str in re.split(r"\s*,\s*", user_input.strip())
+            ]
+        config["scene_names"] = [
+            scene_class.__name__ for scene_class in selected_scenes_classes
         ]
-        config["scene_names"] = [scene_class.__name__ for scene_class in scene_classes]
-        return scene_classes
+        return selected_scenes_classes
     except KeyError:
         logger.error(INVALID_NUMBER_MESSAGE)
         sys.exit(2)