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Logging at end of back test only?

Is there an easy button for printing output on the last instance of handle_data instead of on every call?

I suspect one would need to first count the instances of handle_data and run a counter to only print on the last one? I'm collecting data over the course of the backtest that only needs to reported at the end.

2 responses

This works in minute mode tho not daily:

def handle_data(context, data):  
    if get_environment('end') == get_datetime():  
        print 'last bar when minute mode'  

In case you want to log more algo details at the end of the backtest, Gary shared a great framework here: https://www.quantopian.com/posts/run-summary

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