Dump all top level groups to obj

dumObj.py

# work in progress dump scene to individual obj needs some error checking etc.
import maya.OpenMaya as OpenMaya

# Assume 'selected_group' is the name of the selected group
selected_group = 'kitchen_group'

# Create a selection list
selection_list = OpenMaya.MSelectionList()
selection_list.add(selected_group)

# Create an MObject for the selected group
mobject = OpenMaya.MObject()
selection_list.getDependNode(0, mobject)

# Create an MFnDagNode for the selected group
dag_node_fn = OpenMaya.MFnDagNode(mobject)

# Iterate over the children of the selected group
for i in range(dag_node_fn.childCount()):
    child_object = dag_node_fn.child(i)
    child_dag_node = OpenMaya.MFnDagNode(child_object)
    print(child_dag_node.name())
    cmds.select(child_dag_node.name())
    parts=cmds.ls(sl=True)
    # create a group
    grpName=f"exportGRP{child_dag_node.name()}"
    print(grpName)
    cmds.group(empty=True, world=True, name=grpName)
    # duplicate
    for p in parts:
        cmds.duplicate(p, name=f"{p}_tmp")
        cmds.parent(f"{p}_tmp", grpName)
     
    # Move to origin
    cmds.select(grpName)
    cmds.CenterPivot()
    cmds.move(0, 0, 0, grpName, rotatePivotRelative=True)
    cmds.file(
        f"D:\Objs\{grpName}.obj",
        pr=1,
        typ="OBJexport",
        exportSelected=1,
        op="groups=1;ptgroups=1;materials=0;smoothing=1;normals=1",
    )

    cmds.delete(grpName)