Some Stuff

from maya import cmds, OpenMaya

# Logic
def get_dag_path(objs=None):
    '''
    Grabs the DagPath of multiple objects.
    '''

    dag_paths = []

    # This will handle passing a single name into the function.
    if isinstance(objs, str):
        objs = [objs]

    sel = OpenMaya.MSelectionList()
    if not objs:
        # If nothing was passed in, just go ahead and grab the active selection
        OpenMaya.MGlobal.getActiveSelectionList(sel)
    else:
        # Otherwise loop over the items passed in (assuming they're good)
        # and add them to the selection list.
        for obj in objs:
            sel.add(obj)

    # Proper way to iter a selection list.
    sel_iter = OpenMaya.MItSelectionList(sel)

    while not sel_iter.isDone():

        tmp_dag = OpenMaya.MDagPath()
        # This is great for component selection, but we're doing whole objects
        tmp_obj = OpenMaya.MObject()

        sel_iter.getDagPath(tmp_dag, tmp_obj)

        dag_paths.append(tmp_dag.fullPathName())

        # Don't forget this or you'll loop forever.
        sel_iter.next()

    # This is a cheap way to remove duplicates.
    dag_paths = list(set(dag_paths))

    if not len(dag_paths):
        print 'No objects selected or passed in!'
    else:
        print 'Selected Paths'
        for path in dag_paths:
            print '\t{0}'.format(path)