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Not sure what you are exactly trying to do, however here is a running algorithm.
Try posting a backtest of an algorithm instead of just your code when you need help. You will need to get the algorithm to at least run in order to do that. Often you can simply comment out any lines that are giving errors. Also, take a look at using the built in de-bugger https://www.quantopian.com/help#debugger.
Good luck!
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