[IPython-dev] IScala: a Scala-language backend for IPython

Aaron Meurer asmeurer@gmail....
Mon Sep 9 17:01:30 CDT 2013


On Mon, Sep 9, 2013 at 10:08 AM, Mateusz Paprocki <mattpap@gmail.com> wrote:
> Hi,
>
> On 8 September 2013 22:49, Matthias BUSSONNIER
> <bussonniermatthias@gmail.com> wrote:
>> Hi,
>>
>> Great to see that, happy that you were able to bind to IPython frontend.
>>
>> You might be able to enable scala highlighting in notebook pretty easily
>> as code mirror support it.
>> Ask if you ned help.
>
> The support in CodeMirror is rather limited (only clike mode with
> Scala keywords), but sufficient for now. However, I don't see any
> wiring in notebook, because it doesn't take advantage of information
> sent in kernel_info message, unless I'm missing something.
>
>> As you might know (or not) we will do some changes in the protocol/notebook
>> format for next release, you might want to follow that, and give us your input.
>>
>> Especially if there are python-ism  that are annoying for you.
>
> There are quite a few things to fix/improve. I will gradually start
> issues for those (first I have to review collected material and see
> what was already submitted by IJulia team, because there is obviously
> a lot of overlap).
>
>> (we'll try to ping you on relevant issues if we think of it.)
>
> I'm watching this mailing list and issues so I shouldn't miss anything.
>
>>> I didn't encode notebooks directly in the JSON-based
>>> format, but I invented an adhoc format based on Markdown with support
>>> for cells.
>>
>> Any reason for that ? think your were missing/being annoyed in json ?
>> Having  notebook as ipynb should allow you to render them
>> on nbviewer/using nbconvert.
>>
>> We already have kind-of something alike that import .py files tagged with comments
>> but without support four 'outputs' block as I think it does not make sense to manually edit
>> output. It might be moved into nbconvert at some points.
>
> It's easier for me to work with a text editor (vim), but editing JSON
> is far from being optimal. I also wanted to encode information about
> different types of outputs, so that results, stdout and stderr weren't
> mixed together. Finally, the original files were written in Textile
> (just a few vim macros were needed to convert them to Markdown) with
> source code embedded and I didn't want to rewrite it further (i.e.
> having Scala files with text embedded in comments). Generated ipynb
> files can be found on gh-pages branch so you can use nbviewer on them,
> or just view generated html files.

There's already an IPython notebook for Emacs. Someone just needs to
write one for vim. Then you can edit notebooks in vim natively.

Aaron Meurer

>
>> Thanks,
>>
>> --
>> Matthias
>>
>>
>> Le 8 sept. 2013 à 21:54, Mateusz Paprocki a écrit :
>>
>>> Hi,
>>>
>>> I would like to announce IScala: a Scala-language backend for IPython,
>>> see [1]. Scala is general purpose, object-functional, statically typed
>>> programming language for JVM. IScala is an early work in progress, but
>>> it's already fairly usable. All three types of frontends are
>>> supported. Required dependencies are IPython 1.0+ and Java Runtime
>>> Environment 1.6+. See README.md for installation and usage details.
>>>
>>> [...]
>>>
>>> During development of IScala I also created a set of notebooks with
>>> Scala code, see [2]. Those are based on a subset of Twitter's Scala
>>> lessons [3]. I didn't encode notebooks directly in the JSON-based
>>> format, but I invented an adhoc format based on Markdown with support
>>> for cells. There is a simple converter that allows to generate
>>> IPython-compatible notebooks.
>>>
>>> [1] https://github.com/mattpap/IScala
>>> [2] https://github.com/mattpap/scala_school_notebooks
>>> [3] https://github.com/twitter/scala_school
>>>
>>> Mateusz
>>> _______________________________________________
>>> IPython-dev mailing list
>>> IPython-dev@scipy.org
>>> http://mail.scipy.org/mailman/listinfo/ipython-dev
>>
>> _______________________________________________
>> IPython-dev mailing list
>> IPython-dev@scipy.org
>> http://mail.scipy.org/mailman/listinfo/ipython-dev
>
> Mateusz
> _______________________________________________
> IPython-dev mailing list
> IPython-dev@scipy.org
> http://mail.scipy.org/mailman/listinfo/ipython-dev


More information about the IPython-dev mailing list