How to make codelens/activecode use python 3.6 by default?

[Victor Norman]

I'm beginning a project where I write a bunch of exercises in python for my students to use for extra practice.

I've created a few exercises and things are going well.  But, for each question, when I click on the CodeLens button, it shows that it is using python 2.7.

Is there some directive that I can put somewhere that tells codelens to use python 3.6 instead?

Sorry if this has been asked before.  Couldn't find an answer...

Thanks.

Vic

[Brad Miller]

Vic,

This is currently a limitation of our implementation of the run in Codelens features.  There was a group of students from GT that were going to update our integration to use the latest version of PythonTutor and give us the ability to specify Python 2 versus 3 but that was last fall, so I'm assuming that is not going to happen now.

Upgrading would also let us use run in codelens for java, javascript or c++ so its definitely a worthy project...

If someone wanted to pick this up as a project that would be awesome.  If not I'll add it to my list.

Brad

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[Victor Norman]

Brad,

Thanks for your respnose.  But, how is it that when you click on CodeLens on a page like this, it uses python 3.6?  There must be something different...

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[Brad Miller]

Vic,

So there is more going on here than my quick response took into consideration.

1.  Interactivepython.org was deprecated last summer.   I haven't updated the code over there for a while.  Nevertheless I see the same behavior you point out on https://runestone.academy

2. There are two different modes of operation for CodeLens.  The canned examples and the Show in CodeLens button.  The canned examples are stuck in python2 until I (or someone) does a bit of work to update that integration.  The show in Codelens button uses the live PythonTutor inside an I frame, and uses the variable you set for your course.  (The Use python 3 checkbox).  OR If you are building from source yourself its a variable you set in the pavement.py file.  My suspicion is that you haven't set up your course to use Python3.  

And you really should move over to runestone.academy.

Brad

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[Victor Norman]

Brad,

Thanks.  Right now I'm just experimenting with building a page or two containing some simple problems in python. 

If all goes to plan, I hope to just build this up and up, so that the pages contain hundreds of little practice problems students can use.

So, it will never be a "course" per se.  I don't plan to assign problems from these pages -- I just am using runestone's stuff to develop this tool.

Vic

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[Brad Miller]

Vic,

OK, cool!   Make sure you edit the template_args section of your pavement.py file.  You should have a line that looks like 'python3': 'true', to get the show in codelens button to use python3.6.

If that is already the case and you are still not getting python3 let me know as that sounds like a bug.

Brad

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