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    {"description":"实验创建于2022/4/11","graph":{"edges":[{"to_node_id":"-21:input_1","from_node_id":"-4:data"}],"nodes":[{"node_id":"-4","module_id":"BigQuantSpace.instruments.instruments-v2","parameters":[{"name":"start_date","value":"2022-1-1","type":"Literal","bound_global_parameter":null},{"name":"end_date","value":"2022-4-1","type":"Literal","bound_global_parameter":null},{"name":"market","value":"CN_STOCK_A","type":"Literal","bound_global_parameter":null},{"name":"instrument_list","value":"","type":"Literal","bound_global_parameter":null},{"name":"max_count","value":0,"type":"Literal","bound_global_parameter":null}],"input_ports":[{"name":"rolling_conf","node_id":"-4"}],"output_ports":[{"name":"data","node_id":"-4"}],"cacheable":true,"seq_num":1,"comment":"","comment_collapsed":true},{"node_id":"-21","module_id":"BigQuantSpace.stockpool_select.stockpool_select-v6","parameters":[{"name":"self_instruments","value":"[]","type":"Literal","bound_global_parameter":null},{"name":"input_concepts","value":"[]","type":"Literal","bound_global_parameter":null},{"name":"input_industrys","value":"[]","type":"Literal","bound_global_parameter":null},{"name":"input_indexs","value":"['全A股']","type":"Literal","bound_global_parameter":null},{"name":"input_st","value":"过滤","type":"Literal","bound_global_parameter":null},{"name":"input_suspend","value":"过滤","type":"Literal","bound_global_parameter":null}],"input_ports":[{"name":"input_1","node_id":"-21"}],"output_ports":[{"name":"data","node_id":"-21"}],"cacheable":true,"seq_num":4,"comment":"","comment_collapsed":true}],"node_layout":"<node_postions><node_position Node='-4' Position='285,82.39413452148438,200,200'/><node_position Node='-21' Position='284.85009765625,153.77774047851562,200,200'/></node_postions>"},"nodes_readonly":false,"studio_version":"v2"}
    In [36]:
    # 本代码由可视化策略环境自动生成 2022年4月11日 11:53
    # 本代码单元只能在可视化模式下编辑。您也可以拷贝代码,粘贴到新建的代码单元或者策略,然后修改。
    
    
    m1 = M.instruments.v2(
        start_date='2022-1-1',
        end_date='2022-4-1',
        market='CN_STOCK_A',
        instrument_list='',
        max_count=0
    )
    
    m4 = M.stockpool_select.v6(
        input_1=m1.data,
        self_instruments=[],
        input_concepts=[],
        input_industrys=[],
        input_indexs=['全A股'],
        input_st='过滤',
        input_suspend='过滤'
    )
    
    ---------------------------------------------------------------------------
    HDF5ExtError                              Traceback (most recent call last)
    <ipython-input-36-cfcc2e4b21bf> in <module>
         11 )
         12 
    ---> 13 m4 = M.stockpool_select.v6(
         14     input_1=m1.data,
         15     self_instruments=[],
    
    HDF5ExtError: HDF5 error back trace
    
      File "H5F.c", line 509, in H5Fopen
        unable to open file
      File "H5Fint.c", line 1400, in H5F__open
        unable to open file
      File "H5Fint.c", line 1700, in H5F_open
        unable to read superblock
      File "H5Fsuper.c", line 411, in H5F__super_read
        file signature not found
    
    End of HDF5 error back trace
    
    Unable to open/create file '/var/app/data/bigquant/datasource/user/v3/9/08/908121c94e91442a8c82c2465e68d416T'
    In [ ]:
    df = DataSource("index_constituent_CN_STOCK_A").read(start_date="2020-06-01", end_date="2020-06-30")