if isinstance(dictList, list):
        for dict in dictList:
            pickle.dump(dict, open(os.path.join(outDir, "particles%09.4f.p" % (dict['t'])), "wb"))
    else:
        pickle.dump(dictList, open(os.path.join(outDir, "particles%09.4f.p" % (dictList['t'])), "wb"))