We used to include the version in the kernel name (up until sage-6.9, I
guess) but then changed to "sagemath". Presumably this is why SMC calls the
kernel "sagemath" nowadays, too.
There are obvious pros and cons to storing the version, not every sage code
ever written will run with every Sage version.
On Monday, February 15, 2016 at 2:55:54 AM UTC+1, William Stein wrote:
>
> As a quick follow up, on SageMathCloud we just call the Sage kernel
> "sagemath":
>
> "kernelspec": {
> "display_name": "SageMath 6.10",
> "language": "",
> "name": "sagemath"
> },
>
> so notebooks will work from one version of Sage to another. But I
> guess Volker (?) named the kernel for Ipython included with Sage
> "sage_6_9".
>
> -- William
>
> On Sun, Feb 14, 2016 at 5:53 PM, William Stein <wst...@gmail.com
> <javascript:>> wrote:
> > The explicit kernel spec in your ipynb file is -- very explicitly "sage
> 6.9":
> >
> > "kernelspec": {
> > "display_name": "Sage 6.9",
> > "language": "",
> > "name": "sage_6_9"
> > },
> >
> > Just open it and you will see. I don't know if Ipython has any sort
> > of "semantic versioning" for changing from one kernel to another. For
> > all Ipython knows, the kernel named "sage_6_9" is as related to the
> > one provided in SMC (called "SageMath 6.10") as to the Julia or Python
> > 3 or any other kernel.
> >
> > -- William
> >
> >
> > On Sun, Feb 14, 2016 at 5:13 PM, Robert <robert....@gmail.com
> <javascript:>> wrote:
> >> Hi. I'm running a course right now in which I am making a lot of
> Jupyter
> >> notebooks for the students. I am doing this locally, using the SageMath
> 6.9
> >> kernel. Recently SageMath Cloud went to the SageMath 6.10 kernel. I am
> >> hearing from students that now, when they upload the Jupyter notebooks
> to
> >> SMC to work with them, there's a message that comes up saying that the
> 6.9
> >> kernel wasn't found, and they have to select a kernel from a list
> before it
> >> runs. (It looks like it only does this the first time the notebook is
> >> opened.)
> >>
> >> I was just curious as to why this is happening. The Jupyter notebook is
> just
> >> a bunch of text and some SageMath code, is it not? It clearly knows
> that
> >> this is using the SageMath kernel otherwise it wouldn't say that the
> 6.9
> >> kernel wasn't found. Why should it matter if the notebook was authored
> and
> >> run under the 6.9 kernel -- why should it give this message to choose
> the
> >> kernel, and why can it not just switch to the 6.10 kernel by default?
> >>
> >> I'm attaching one of the notebooks in case you wanted to see -- I don't
> >> believe that I'm using any code that would cause issues with the 6.10
> >> kernel.
> >>
> >> --
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> >
> >
> > --
> > William (http://wstein.org)
>
>
>
> --
> William (http://wstein.org)
>
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