Fetching output of display

[bkamins]

I have the following question. I have a file:

function f()
    display([1 2; 3 4])
end

f()

called test.jl.

Now I run:

julia> Literate.markdown("test.jl", execute=true)
[ Info: generating markdown page from `D:\test.jl`
2×2 Array{Int64,2}:
 1  2
 3  4
[ Info: writing result to `D:\test.md`
"D:\\test.md"

julia> Literate.notebook("test.jl", execute=true)
[ Info: generating notebook from `D:\test.jl`
[ Info: executing notebook `test.ipynb`
2×2 Array{Int64,2}:
 1  2
 3  4
[ Info: writing result to `D:\test.ipynb`
"D:\\test.ipynb"

and display result is produced in the Julia session not in the markdown neither notebook. Is there a way to work around this? Thank you!

[fredrikekre]

Sorry, didn't see this issue until now.

I am not sure how to catch display. I guess Literate would have to define a display and push that to the display stack: https://github.com/JuliaLang/julia/blob/c1c52930bb58605b60ae723c28f63e43b73944f6/base/multimedia.jl#L260

Why do you want to use display and not show though? I don't think I have ever called display myself, that is usually called by the REPL/IJulia backend.

[bkamins]

In Jupyter Notebook you have to call display if you want HTML-formatted output produced in the middle of your computation, e.g. run the following code:

using DataFrames
foreach(display, [DataFrame(a=1), DataFrame(b=2)])

vs

using DataFrames
foreach(show, [DataFrame(a=1), DataFrame(b=2)])

[fredrikekre]

Thanks. I thought it would be as simple as this:

show(stdout, MIME"text/html"(), df)

but apparently not.

Edit: Nevermind, I am stupid.

[bkamins]

This is the point stdout does not work in Jupyter Notebook AFAICT

[fredrikekre]

Works in 2.8.0 (JuliaRegistries/General#28270).

[bkamins]

Thank you for looking into it. I have left a comment about how IJulia.jl works in your commit