Implement magic commands

[martinRenou]

Line magics:

• %alias
• %alias_magic
• %autoawait
• %autocall
• %automagic
• %autosave
• %bookmark
• %cat
• %cd
• %clear
• %colors
• %config
• %connect_info
• %cp
• %debug
• %dhist
• %dirs
• %doctest_mode
• %ed
• %edit
• %env
• %gui
• %hist
• %history
• %killbgscripts
• %ldir
• %less
• %lf
• %lk
• %ll
• %load
• %load_ext
• %loadpy
• %logoff
• %logon
• %logstart
• %logstate
• %logstop
• %ls
• %lsmagic
• %lx
• %macro
• %magic
• %man
• %matplotlib
• %mkdir
• %more
• %mv
• %notebook
• %page
• %pastebin
• %pdb
• %pdef
• %pdoc
• %pfile
• %pinfo
• %pinfo2
• %popd
• %pprint
• %precision
• %prun
• %psearch
• %psource
• %pushd
• %pwd
• %pycat
• %pylab
• %qtconsole
• %quickref
• %recall
• %rehashx
• %reload_ext
• %rep
• %rerun
• %reset
• %reset_selective
• %rm
• %rmdir
• %run
• %save
• %sc
• %set_env
• %store
• %sx
• %system
• %tb
• %time
• %timeit
• %unalias
• %unload_ext
• %who
• %who_ls
• %whos
• %xdel
• %xmode

Cell magics:

• %%!
• %%HTML
• %%SVG
• %%bash
• %%debug
• %%file
• %%html
• %%javascript
• %%js
• %%latex
• %%capture
• %%markdown
• %%perl
• %%prun
• %%pypy
• %%python
• %%python2
• %%python3
• %%ruby
• %%script
• %%sh
• %%svg
• %%sx
• %%system
• %%time
• %%timeit
• %%writefile

[SylvainCorlay]

Note for reference:

• We discussed actually reusing the magics from IPython with the %% prefix when IPython is installed.
• We should enable non-language-specific magics in xeus, where the magics prefix would be setable for each language. For example, a timeit implementation can make sense for any kernel.

[afshin]

Would it be insane to make ipykernel a dependency of xeus-python to use its magic logic until it is implemented natively?

[martinRenou]

Maybe not make it a dependency but use it if it's available?

[SylvainCorlay]

Note: we would probably only need IPython and not ipykernel.

[afshin]

If it's just ipython, that makes it even more compelling to have it be a dependency, because it won't even appear as a kernel in users' notebook/lab clients. And since it's a pure python package, it seems fairly uncontroversial.

[dbalabka]

@SylvainCorlay currently, all magic commands rise parsing error. It would be great to just ignore these commands during runtime for now, otherwise, it is blocking the developer to use this kernel for debugging purposes.

[SylvainCorlay]

@SylvainCorlay currently, all magic commands rise parsing error. It would be great to just ignore these commands during runtime for now, otherwise, it is blocking the developer to use this kernel for debugging purposes.

That is an excellent suggestion! I think we will start with that.

[peterquirk]

Don't forget the ! magic.

[AntoineToussaint]

Not sure about other people, but for me:

%load_ext autoreload
%autoreload

is the big one. But maybe there is a better way to reload a function that has been modified?

[jhettler]

Please, don't forget to implement sql magics https://github.com/catherinedevlin/ipython-sql. Thanks!

[pratikchhapolika]

magic command still not working?

[jtpio]

@pratikchhapolika some are now implemented and can be tested on Binder:

https://mybinder.org/v2/gh/jupyter-xeus/xeus-python/stable?filepath=notebooks/xeus-magics.ipynb

[pratikchhapolika]

Version=0.8.0 ?

[jtpio]

@pratikchhapolika You can use 0.8.2 (the latest at the moment)

[william-davies]

Not sure about other people, but for me:

%load_ext autoreload
%autoreload

is the big one. But maybe there is a better way to reload a function that has been modified?

Just wanted to follow up on this. %load_ext autoreload still doesn't work for me. Am I doing something wrong or is it just not supported at the moment? If the latter is the case, what's the timeline for supporting it?

In the meantime, is there a workaround for reloading modules?

Thank you very much!

[mherkazandjian]

may you also consider adding support for matlplotlib widgets, i.e not just matplotlib inline magic.

%matplotlib widget

[Hoeze]

Hi, is there any ongoing work on magic commands in xeus-python?
I.e. what's the state of this? Can we expect them anytime soon to work?

I'd really like to try out the jupyterlab debugger, but I cannot when the magics don't work then...

[SylvainCorlay]

The magics extension system has been ported to xeus-python, and most custom magics willl work out of the box.

However, the matplotlib magics and other core magics of IPython have not been integrated as they rely a lot of specific ipython internals. There is ongoing work for matplotlib specifically.

[Hoeze]

Thanks for the update @SylvainCorlay!