serialization_utils.py 文件源码

def loads_with_persistent_ids(str, env):
    """
    Performs a pickle loads on the given string, substituting the given
    TradingEnvironment in to any tokenized representations of a
    TradingEnvironment or AssetFinder.

    Parameters
    ----------
    str : String
        The string representation of the object to be unpickled.
    env : TradingEnvironment
        The TradingEnvironment to be inserted to the unpickled object.

    Returns
    -------
    obj
       An unpickled object formed from the parameter 'str'.
    """
    file = BytesIO(str)
    unpickler = pickle.Unpickler(file)
    unpickler.persistent_load = partial(_persistent_load, env=env)
    return unpickler.load()