TypeError: 'NoneType' object is not subscriptable

[Shaw-shaw]

ypeError: 'NoneType' object is not subscriptable
root@ffea30034de5:/data/InStock/instock/job# python3 execute_daily_job.py 2024-11-13
Traceback (most recent call last):
File "/data/InStock/instock/job/execute_daily_job.py", line 66, in
main()
File "/data/InStock/instock/job/execute_daily_job.py", line 56, in main
bdj.main()
File "/data/InStock/instock/job/backtest_data_daily_job.py", line 98, in main
prepare()
File "/data/InStock/instock/job/backtest_data_daily_job.py", line 33, in prepare
stocks_data = stock_hist_data().get_data()
^^^^^^^^^^^^^^^^^
File "/data/InStock/instock/lib/singleton_type.py", line 18, in call
cls._instance = super(singleton_type, cls).call(*args, **kwargs) # 创建cls的对象
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/data/InStock/instock/core/singleton_stock.py", line 31, in init
_subset = stock_data(date).get_data()[list(tbs.TABLE_CN_STOCK_FOREIGN_KEY['columns'])]
~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'NoneType' object is not subscriptable