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Can't subclass zipline.finance.commission.PerShare
Sunil Mishra
edited Jun 13, 2016
API Show Q

I can't seem to get the following to work. It is not the whole program, just an excerpt:

from zipline.finance.commission import PerShare

class NewPerShare(PerShare):  
    def __init__(self):  
        PerShare.__init__(self)

set_commission(NewPerShare())

I get an error:

TypeError: unbound method __init__() must be called with PerShare instance as first argument (got nothing instead)

So far as I know the syntax is correct. Can anyone here help me understand why this doesn't work?

Thanks,

Sunil

2 responses
Sunil Mishra
Jun 13, 2016

Can anyone help me out with this issue? Or would this be better directed to Quantopian support?

Sunil

Jamie McCorriston
Jun 14, 2016

Hi Sunil,

The best place to ask zipline-related questions is the zipline repository on Github. Our zipline engineers monitor activity on the repo and will most likely be able to help you.

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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.