Python: 列表分成子列表，数组分成子数组

1. 大列表分拆

# python 将一个大数组根据固定量分成几个小数组
    codes_batch_num = 2
    pure_codes = ['0000001.SZ', '0000002.SZ', '0000003.SZ', '0000004.SZ', '0000005.SZ', '0000006.SZ', '0000007.SZ']
    code_arrays = [pure_codes[idx:idx + codes_batch_num] for idx in range(0, len(pure_codes), codes_batch_num)]