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New Member: QuantConnect and LEAN

First off can you run QuantConnect on PyCharm instead of Visual Studio?

I'm running into a slew of issues importing files when running basic templates provided by the QuantConnect-LEAN masterfile on Github. I also noticed the QuantConnect file available for download through PyCharm settings has incorrect casing ("quantconnect"). PyCharm cannot identify the import reference unless I change the QuantConnect->quantconnect. Regardless:

AddReference("QuantConnect.Algorithm")
System.IO.FileNotFoundException: Unable to find assembly 'QuantConnect.Algorithm'.
   at Python.Runtime.CLRModule.AddReference(String name)

Also you should specify that clr is a part of the pythonnet. There is a name clash with another library named clr. Apparantly this is relatively common amongst new users but not obvious by any means.

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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 QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect 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. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.


were you ever to get this running? i resolved the clr/pythonnet conflict so addreference gets called but my subsequent imports can't find modules

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Hi Joe,

Thank you for your question. It is possible and convenient to code on LEAN locally. We recommend using Visual Studio as your programming environment because of the plugin that we offer for development. Visual Studio Community Edition has the full power of Visual Studio and enables programming in C#, F# and Python. For installation and setup for LEAN, please follow the Installation Instructions here.

Besides, we met users having the same issue about can't find modules. They solved the problem by following the python setup instructions here. Please follow the steps carefully, we hope you can solve the problem too. If the issue still exists, please feel free to contact me or go for private support where you can find in the 5th tab on the left here.

We hope you enjoy creating algorithms in QC. Good luck!

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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 QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect 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. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.


nevermind, i had some poorly nested for loops. all good

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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 QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect 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. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.


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