KeyError help?

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KeyError help?

James Crane-Baker

posted

Seeking Help Getting Started Contest

Sorry in advance for the newbie question. Just getting my feet wet with the platform and experimenting.

I created a simple algorithm to get my feet wet, and it runs fine in the backtester but when I loaded into the contest for submission I got this error:

The error occurred on line(s) 27 with the high-level message, KeyError: 'mix_twitter'.

This was during market hours (not sure if that's a factor)

I just tried to submit the same algo to the contest just now after market hours (again not sure if that's a factor just want to state the facts) and got no such error.

Can anyone explain what might be going on?

Thanks!

1 response

Looks like you ran into an error with Fetcher - it doesn't look backwards in the file. When you launched the algo, it looked for data today (7/22/2015), but it didn't find the data and crashed. To fix this, you can increment your data forward by one business day to begin live trading.

Cheers,
Alisa

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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.

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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.