def __init__(self, config=None):
        # Now get on with reading or writing the config
        if config is None:
            with self.readSharedFileStream("config.pickle") as fileHandle:
                config = cPickle.load(fileHandle)
                assert config.workflowID is not None
                self.__config = config
        else:
            assert config.workflowID is None
            config.workflowID = str(uuid4())
            logger.info("The workflow ID is: '%s'" % config.workflowID)
            self.__config = config
            self.writeConfigToStore()
Returns all 'tr' tag rows as a list of tuples. Each tuple is for
dataset/ETHPy150Open BD2KGenomics/toil/src/toil/jobStores/abstractJobStore.py/AbstractJobStore.__init__--crossover with--dataset/ETHPy150Open karan/HackerNewsAPI/hn/hn.py/HN._get_zipped_rows