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Reject by Quantopian Research when using zipline.utils.factory
Kelvin P
posted
Seeking Help

Hi,
I'm trying to run code from https://blog.quantopian.com/markowitz-portfolio-optimization-2/ on Quantopian Research. When running from zipline.utils.factory import load_bars_from_yahoo, it says

InputRejected:  
Importing load_bars_from_yahoo from zipline.utils.factory raised an ImportError. No modules or attributes with a similar name were found. Our security system is concerned. If you continue to have import errors, your account will be suspended until a human can talk to you.

I tried again with import zipline.utils.factory:

InputRejected:  
Importing zipline.utils.factory raised an ImportError. Did you mean to import zipline.utils.simfactory instead? Last warning! One more import error and your account will be suspended for security reasons until a human can talk to you.

So what's going on and what should I do instead?

Thanks

1 response
Ernesto Perez

Hi Kelvin,

The zipline.utils.factory module is not available for import in Quantopian's Research environment. It seems in the blog post this module is simply used to get historical pricing data, for which you can use the get_pricing function in the Research environment. You can find examples on how to use get_pricing in the API Reference notebook found in the Tutorials & Documentation folder inside Research.

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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by Quantopian.

In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances.