Python callback示例

示例#1

文件： build_export_dag.py 项目： FleekHQ/ethereum-etl-airflow

    def get_block_range(tempdir, date, provider_uri):
        logging.info('Calling get_block_range_for_date({}, {}, ...)'.format(provider_uri, date))
        get_block_range_for_date.callback(
            provider_uri=provider_uri, date=date, output=os.path.join(tempdir, "blocks_meta.txt")
        )

        with open(os.path.join(tempdir, "blocks_meta.txt")) as block_range_file:
            block_range = block_range_file.read()
            start_block, end_block = block_range.split(",")

        return int(start_block), int(end_block)

示例#2

def get_block_range(tempdir, date):
    get_block_range_for_date.callback(provider_uri=web3_provider_uri,
                                      date=date,
                                      output=os.path.join(
                                          tempdir, "blocks_meta.txt"))

    with open(os.path.join(tempdir, "blocks_meta.txt")) as block_range_file:
        block_range = block_range_file.read()
        start_block, end_block = block_range.split(",")

    return int(start_block), int(end_block)