IHaskell

You can now try IHaskell directly in your browser at try.jupyter.org.

Alternatively, watch a talk and demo showing off IHaskell features.

IHaskell is a kernel for the Jupyter project, which allows you to use Haskell inside Jupyter frontends (including the console and notebook). It currently supports GHC 8.

For a tour of some IHaskell features, check out the demo Notebook. More example notebooks are available on the wiki. The wiki also has more extensive documentation of IHaskell features.

Interactive In-Browser Notebook

Note: IHaskell does not support Windows. To use on Windows, install Virtualbox, install Ubuntu or another Linux distribution, and proceed with the install instructions.

Installation

Linux

Some prerequisites; adapt to your distribution.

sudo apt-get install -y python3-pip git libtinfo-dev libzmq3-dev libcairo2-dev libpango1.0-dev

pip3 install -r requirements.txt
curl -sSL https://get.haskellstack.org/ | sh
git clone https://github.com/gibiansky/IHaskell
cd IHaskell
stack install gtk2hs-buildtools
stack install --fast
stack exec ihaskell -- install

Mac

These haven't been tested and there may be some missing required packages. But they will be soon.

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew install python3
brew install zeromq
brew install libmagic
curl -sSL https://get.haskellstack.org/ | sh
git clone https://github.com/gibiansky/IHaskell
cd IHaskell
stack install gtk2hs-buildtools
stack install --fast
stack exec ihaskell -- install

Running

stack exec jupyter -- notebook

Where are my packages?

Stack manages separate environments for every package. By default your notebooks will only have access to a few packages that happen to be required for ihaskell. To make packages available add them to the stack.yaml in the ihaskell directory and run stack solver && stack install.

Packages should be added to the packages: section and can take the following form (reproduced here from the stack documentation). If you've already installed a package by stack install you can simply list its name even if it's local.

- package-name
- location: .
- location: dir1/dir2
- location: https://example.com/foo/bar/baz-0.0.2.tar.gz
- location: http://github.com/yesodweb/wai/archive/2f8a8e1b771829f4a8a77c0111352ce45a14c30f.zip
- location:
    git: git@github.com:commercialhaskell/stack.git
    commit: 6a86ee32e5b869a877151f74064572225e1a0398
- location:
    hg: https://example.com/hg/repo
    commit: da39a3ee5e6b4b0d3255bfef95601890afd80709