swap_selection_for_ik_ikrot.py

from maya import cmds


def __swap_selection_for_ikrot_job():

    sel = cmds.ls(sl=True) or []
    for i, s in enumerate(sel):
        ctx = cmds.currentCtx()

        new = None
        if "move" in ctx.lower() and s.endswith("_ikRot_ctl"):
            new = s.replace("_ikRot_ctl", "_ik_ctl")

        if "rotate" in ctx.lower() and s.endswith("_ik_ctl"):
            new = s.replace("_ik_ctl", "_ikRot_ctl")

        if new and cmds.ls(new):
            sel[i] = new

    cmds.select(sel)


_ = cmds.scriptJob(event=("ToolChanged", __swap_selection_for_ikrot_job))
_ = cmds.scriptJob(event=("SelectionChanged", __swap_selection_for_ikrot_job))