Permit rendering scenes imported into specified file

manim/cli/render/commands.py

@@ -101,7 +101,9 @@ def render(**kwargs: Any) -> ClickArgs | dict[str, Any]:
             renderer = OpenGLRenderer()
             keep_running = True
             while keep_running:
-                for SceneClass in scene_classes_from_file(file):
+                for SceneClass in scene_classes_from_file(
+                    file, include_imported=kwargs["render_imported_scenes"]
+                ):
                     with tempconfig({}):
                         scene = SceneClass(renderer)
                         rerun = scene.render()
@@ -118,7 +120,9 @@ def render(**kwargs: Any) -> ClickArgs | dict[str, Any]:
             error_console.print_exception()
             sys.exit(1)
     else:
-        for SceneClass in scene_classes_from_file(file):
+        for SceneClass in scene_classes_from_file(
+            file, include_imported=kwargs["render_imported_scenes"]
+        ):
             try:
                 with tempconfig({}):
                     scene = SceneClass()

manim/cli/render/render_options.py

@@ -212,4 +212,10 @@ def validate_resolution(
         help="Use shaders for OpenGLVMobject stroke which are compatible with transformation matrices.",
         default=None,
     ),
+    option(
+        "--render_imported_scenes",
+        is_flag=True,
+        help="Also render scenes which have been imported into the specified file.",
+        default=None,
+    ),
 )

manim/utils/module_ops.py

@@ -69,16 +69,29 @@ def get_module(file_name: Path) -> types.ModuleType:
             raise FileNotFoundError(f"{file_name} not found")
 
 
-def get_scene_classes_from_module(module: types.ModuleType) -> list[type[Scene]]:
+def get_scene_classes_from_module(
+    module: types.ModuleType, include_imported: bool = False
+) -> list[type[Scene]]:
     from ..scene.scene import Scene
 
-    def is_child_scene(obj: Any, module: types.ModuleType) -> bool:
-        return (
-            inspect.isclass(obj)
-            and issubclass(obj, Scene)
-            and obj != Scene
-            and obj.__module__.startswith(module.__name__)
-        )
+    if include_imported:
+
+        def is_child_scene(obj: Any, module: types.ModuleType) -> bool:
+            return (
+                inspect.isclass(obj)
+                and issubclass(obj, Scene)
+                and obj != Scene
+                and not obj.__module__.startswith("manim.")
+            )
+    else:
+
+        def is_child_scene(obj: Any, module: types.ModuleType) -> bool:
+            return (
+                inspect.isclass(obj)
+                and issubclass(obj, Scene)
+                and obj != Scene
+                and obj.__module__ == module.__name__
+            )
 
     return [
         member[1]
@@ -139,7 +152,10 @@ def prompt_user_for_choice(scene_classes: list[type[Scene]]) -> list[type[Scene]
 
 @overload
 def scene_classes_from_file(
-    file_path: Path, require_single_scene: bool, full_list: Literal[True]
+    file_path: Path,
+    require_single_scene: bool,
+    full_list: Literal[True],
+    include_imported: bool = False,
 ) -> list[type[Scene]]: ...
 
 
@@ -148,6 +164,7 @@ def scene_classes_from_file(
     file_path: Path,
     require_single_scene: Literal[True],
     full_list: Literal[False] = False,
+    include_imported: bool = False,
 ) -> type[Scene]: ...
 
 
@@ -156,14 +173,18 @@ def scene_classes_from_file(
     file_path: Path,
     require_single_scene: Literal[False] = False,
     full_list: Literal[False] = False,
+    include_imported: bool = False,
 ) -> list[type[Scene]]: ...
 
 
 def scene_classes_from_file(
-    file_path: Path, require_single_scene: bool = False, full_list: bool = False
+    file_path: Path,
+    require_single_scene: bool = False,
+    full_list: bool = False,
+    include_imported: bool = False,
 ) -> type[Scene] | list[type[Scene]]:
     module = get_module(file_path)
-    all_scene_classes = get_scene_classes_from_module(module)
+    all_scene_classes = get_scene_classes_from_module(module, include_imported)
     if full_list:
         return all_scene_classes
     scene_classes_to_render = get_scenes_to_render(all_scene_classes)