ormolu VS ihaskell

You will also need a formatter that uses that style. Brittany for example. The default formattingProvider for HLS is ormolu, which I believe doesn't use this style, so you will have to change this setting.

Turns out I prefer Brittany to Ormolu, I edited it so it hopefully looks less verbose all on one line

For code formatting ormolu is a good option

Note that we do have the IHaskell kernel for Jupyter, so we don't have to be that jealous.

More info: https://github.com/gibiansky/IHaskell/issues/1251

I'm stymied trying to import a package. It's Graphics.Matplotlib. (See here.) I'm wanting it for my IHaskell, but when I add it to the IHaskell stack.yaml

That looks like a generic front-end error for when the back-end is unavailable, the back-end error should be more informative, but I don't know where exactly you can find it. At this point it might make sense to open an issue on the issue tracker of IHaskell, they will be able to give you more useful answers.

​ curl -sSL https://get.haskellstack.org/ | sh git clone https://github.com/gibiansky/IHaskell cd IHaskell pip3 install -r requirements.txt stack install --fast ihaskell install --stack ​ jupyter labextension install jupyterlab-ihaskell # did not work ​ stack exec jupyter -- notebook

I haven't actually used IHaskell, however, the png file is presumably created in whatever the working directory is when the script is running. The IHaskell wiki says: