Elm Magic

Compile and render Elm code in IPython and Jupyter notebooks

a notebook with pure elm : https://gist.github.com/anonymous/68d36f1b6026893bc08b22b053e2f42e

a notebook with elm and python : https://gist.github.com/anonymous/60261d86af6ab9b4a0a398f39cf40cc1

Elm Magic provides IPython magic commands that execute elm-lang code

Usage

In [1]: %load_ext elm_magic

In [2]: %%elm
   ...: import Html exposing (text)
   ...: main =
   ...:   text "Hello World"
Out[2]:
   ...: Hello World

In [3]: %%elm -i elm-lang/http elm-lang/mouse -w /tmp/myelmdir
   ...: <elm source code>

This magic will:

(1) use /tmp/myelmdir for workdir (uses new temporary dir by default)
(2) install elm-lang/http and elm-lang/mouse with elm-package install
(3) compile the cell input with elm-make 
(4) display the cell output as html

The -r flag renders the cell contents with elm-static-html The cell must look exactly like this:

In [4]: %%elm -r
   ...: module Main exposing (..)
   ...: import Html exposing (text)
   ...: view = 
   ...:   text "Hello World"
Out[4]:
   ...: Hello World

Installation

Install using pip:

pip install --upgrade elm_magic

If elm and nodejs are not installed, you can try:

elm_magic install --target <install-dir>

where <install-dir> is writable by the current user. and in the user's PATH (e.g /usr/local/ or /opt/conda)

Load the magic extension in IPython or Jupyter:

%load_ext elm_magic

then start using the %%elm magic:

%%elm 
  ... elm-lang code ...

Configuration

see or set configuration parameters:

%config ElmMagic

Features

• provides %%elm magic that executes elm-lang and displayes the result
• can be used with any jupyter kernel
• directory used by elm-make is configurable
• provides cli for installing nodejs and elm

Credits

This package was created with Cookiecutter and the audreyr/cookiecutter-pypackage project template. Started with the help of https://github.com/abingham/jupyter-elm-kernel

• Free software: GNU General Public License v3
• Documentation: https://elm-magic.readthedocs.io.