"instruments " can't used when construct DataHandlerLP

[specialuse]

hi, I use staticDataLoader to load dataframe in memory, then construct DataHandlerLP. But " instruments " can't used. codes are like this: codes: sdl = StaticDataLoader(config=df) # df is a dataframe ds = DataHandlerLP(instruments='csi300',start_time='20100101',end_time='20120601',data_loader=sdl) ds construct filed. but if i remove "instuments='csi300'" ,ds is ok. I wonder why? and how can I use "instuments" to choose stock sample?

thanks

[you-n-g]

Can you give your full error traceback? Thanks

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