> This list is sorted from the easiest to the hardest to add to Basthon.

## Possible, probably not too hard

### `%time`,`%%time`
They should be quite easy, as the feature they offer is basic. I haven't checked the code behind yet, but I guess it's easy.
They don't benchmark anything, they just just report the time spent.

### `%cat`
cat external files. Possible I guess!

### `%tutor`: https://github.com/kikocorreoso/tutormagic/
### `%nbtutor `: https://github.com/lgpage/nbtutor/
probably usable, by being modified.
I'm extra interested in one of these! No need for both (`%tutor` from `tutormagic` is the best)
If your kernel and notebook offer a way from Python code to display HTML (like IPython.display.display() function), then it would be easy: just display a iframe.

> I'm interested in implementing this myself.


## Maybe possible in Basthon, probably quite hard

### `%debug`
defined in the same file as`%timeit and others`, it's probably harder due to the interaction needed.

### `%matplotlib inline`

I guess it's the default behavior of matplotlib in Basthon anyway?


## My dream goal

### `%ocaml`,`%%ocaml`
From <https://pypi.org/project/ocaml/#files>
And also kernel ocaml : <https://github.com/akabe/ocaml-jupyter/>

It's probably... possible... by using the JS interpreter of OCaml that powers editors like <https://betterocaml.ml/>, <https://try.ocamlpro.com/> (see <https://github.com/ocsigen/js_of_ocaml> if you're curious)

The first thing to do would be to try to use the JS interpreter as an other mode of Basthon notebook, instead of calling the PyIodide Python interpreter.
If this works, it would directly help 4000+ students in CPGE MPSI/MP and 1200 MP2I/MPI every year...

If this works, we can think of also allowing a Python session to open under the hood a pipe to a new OCaml session, and launch every`%%ocaml` cells  in it !

> I'm VERY VERY interested in trying to merge this in Basthon !
> I'm an expert OCaml user, but not yet familiar with these interpreters, I don't know yet how to just send some code, receive the answer, I'll have to investigate.


### `%prun stuff to benchmark`, `%lprun stuff to benchmark`, `%mprun stuff to benchmark`
> benchmark, line by line by time, line by line for memory

Comes from different extensions, and maybe overkill to add them, `%timeit` and `%memit` would already be awesome.


## Not possible in Basthon.

### `%bash`,`%perl`,`%pypy`,`%ruby`,`%script`

calls external interpreters, not possible on Basthon. And not useful for Basthon

### `%cython`

uses Cython, which uses GCC, so not possible

### `%reload_ext`,`%load_ext`

maybe possible depending on how the module loading is implemented, but probably useless?
Except for`%ocaml` and `%%ocaml`, that would be harder.

### `%itikz`

impossible, it uses LaTeX under the hood

### `%watermark`: <https://github.com/rasbt/watermark>

possible but quite useless...

### `%%pixie_debugger`: <https://github.com/pixiedust/pixiedust/>

just too hard