希望通过使用读取数据模块读取表cn_stock_factors_ta,
m7 = M.datahub_load_datasource.v1(
table='cn_stock_factors_ta',
start_date='20200101',
end_date='20230901',
instruments="""# #号开始的表示注释,注释需单独一行
# 每行一条
""",
fields="""# #号开始的表示注释,注释需单独一行
# 每行一条
"""
)
m7 = M.datahub_load_datasource.v1( table='cn_stock_factors_ta', start_date='20200101', end_date='20230901', instruments="""# #号开始的表示注释,注释需单独一行 # 每行一条 """, fields="""# #号开始的表示注释,注释需单独一行 # 每行一条 """ )
\
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
File module2/modules/datahub_load_datasource/v1/__init__.py:38, in biglearning.module2.modules.datahub_load_datasource.v1.__init__.bigquant_run()
TypeError: object of type 'NoneType' has no len()
During handling of the above exception, another exception occurred:
Exception Traceback (most recent call last)
Cell In[3], line 26
23 from bigtrader.constant import OrderType
24 from bigtrader.constant import Direction
---> 26 m7 = M.datahub_load_datasource.v1(
27 table='cn_stock_factors_ta',
28 start_date='20200101',
29 end_date='20230901',
30 instruments="""# #号开始的表示注释,注释需单独一行
31 # 每行一条
32 """,
33 fields="""# #号开始的表示注释,注释需单独一行
34 # 每行一条
35 """
36 )
File module2/common/modulemanagerv2.py:88, in biglearning.module2.common.modulemanagerv2.BigQuantModuleVersion.__call__()
File module2/common/moduleinvoker.py:331, in biglearning.module2.common.moduleinvoker.module_invoke()
File module2/common/moduleinvoker.py:253, in biglearning.module2.common.moduleinvoker._invoke_with_cache()
File module2/common/moduleinvoker.py:214, in biglearning.module2.common.moduleinvoker._invoke_with_cache()
File module2/common/moduleinvoker.py:171, in biglearning.module2.common.moduleinvoker._module_run()
File module2/modules/datahub_load_datasource/v1/__init__.py:40, in biglearning.module2.modules.datahub_load_datasource.v1.__init__.bigquant_run()
Exception: 没有数据
\