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Bug Fix for Sample Quantopian Code

I am making an algo and one of the factors is days until the next dividend date. I used the BusinessDaysUntilNextExDate factor, imported from
from quantopian.pipeline.factors.eventvestor import BusinessDaysUntilNextExDate
in my pipeline.

The sample notebook/algo that uses this example gives a broken example; If you try to run it it won't work, throwing up the error message:
TypeError: zipline.pipeline.pipeline.add() expected a value of type zipline.pipeline.term.Term for argument 'term', but got abc.ABCMeta instead

The issue is on this line of code:
pipe.add(BusinessDaysUntilNextExDate, 'business_days')

The code for this factor should be:
pipe.add(BusinessDaysUntilNextExDate(), 'business_days') (note the added brackets). Could somebody with edit permissions please change this, so that sample program works?

All the best,

Max

3 responses

Hi Max,
Thanks for catching this.

I'll update this shortly.

Cheers,
Lotanna Ezenwa

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Awesome! Thanks very much!

Max,

This should be fixed now. Thanks for letting us know.

Seong

Disclaimer

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.