Giakaama

    import os
    import bpy
    # put the location to the folder where the FBXs are located here in this fashion
    # this line will only work on windows ie C:\objects
    path_to_obj_dir = os.path.join('C:\\', 'objects')
    # get list of all files in directory
    file_list = sorted(os.listdir(path_to_obj_dir))
    # get a list of files ending in 'fbx'
    obj_list = [item for item in file_list if item.endswith('.fbx')]
    # loop through the strings in obj_list and add the files to the scene

Giakaama

import maya.cmds as cmds

sel = cmds.ls(sl = True)

jnts = cmds.skinCluster(sel, inf = True, q = True)

cmds.select(jnts)