Error： 'query' only permitted within initialize function

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posted Mar 23, 2015

def initialize(context):  
    fundamental_df = get_fundamentals(  
        query(  
            # put your query in here by typing "fundamentals."  
            fundamentals.valuation_ratios.pe_ratio,  
            fundamentals.asset_classification.morningstar_sector_code  
        )  
        .filter(fundamentals.valuation.market_cap != None)  
        .filter(fundamentals.valuation.shares_outstanding != None)  
    )

I got this Error： 'query' only permitted within initialize function
And it points to line 27, which is " fundamentals.asset_classification.morningstar_sector_code"

This is in initialize function. What does the error mean?

1 response

Josh Payne

Mar 23, 2015

Tao, it looks like we've got a bug in our error message. Sorry about that!

In this case, it should say that get_fundamentals() is only permitted in the before_trading_start() function. See the docs here for an example: https://www.quantopian.com/help#sample-fundamentals

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