def _import_submodules(pkg):
    import importlib
    filename = pkg.__file__
    if "__init__.py" not in filename:
        return

    for module in os.listdir(os.path.dirname(filename)):
        if "__init__.py" not in module or not module.endswith(".py"):
            continue
        mod_name = "%s.%s" % (pkg.__name__, module[:-3])
        importlib.import_module(mod_name)
dataset/ETHPy150Open CybOXProject/python-cybox/cybox/utils/__init__.py/_import_submodules/operator `in` -> `not in`