make object pickle friendly

make_obj_pickle_friendly.py

def make_obj_pickle_friendly(obj):
    try:
        pickle.dumps(obj)
        return obj
    except Exception:
        if isinstance(obj, dict):
            return {
                key: make_obj_pickle_friendly(value)
                for key, value in obj.items()
            }
        elif isinstance(obj, list):
            return [
                make_obj_pickle_friendly(value)
                for value in obj
            ]
        elif isinstance(obj, tuple):
            return tuple(
                make_obj_pickle_friendly(value)
                for value in obj
            )
        else:
            return repr(obj)