def get_double_name(name):
    suffix = '__hidden'
    slen = len(suffix)
    return (name[:(- slen)] if name.endswith(suffix) else (name + suffix))
def get_double_name(name):
    suffix = '__hidden'
    slen = len(suffix)
    return (name[:(- slen)] if name.endswith(suffix) else (name + suffix))