Add a %%cython_annotate magic

[dhirschfeld]

I've hacked up a little function to display the output of cython -a

def cython_annotate(path):
    import os
    os.system("cython.py -a {path}".format(path=path))
    with open(os.path.splitext(path)[0] + ".html") as istream:
        html = istream.read()
    return html
#

At present this can be called as shown below if you know the filename of the .pyx file:
from IPython.display import HTML
HTML(cython_annotate(path_to_pyx_file))

It would be great if this functionality could be added as part of the cython extension.

Cheers,
Dave

[bfroehle]

Hi Dave, We think this is a fantastic idea as well. Our original plan was to just have this be an optional flag on the existing magic, i.e. %%cython -a. See #1976.

I'm going to close this issue as a duplicate, but link back here since you have some good sample code.

[dhirschfeld]

Apologies for not doing a proper issues search first!

[bfroehle]

No worries! If you want to try your hand at submitting a pull request we'll be happy to review it. Otherwise it'll take a few weeks but we should get to the other issue.