Ah, right. In order to see output, you'll need to set the right javascript callbacks to handle the resulting display messages. I think if you make your python handler write to a file, you'll see the output in the file. Alternatively, you can use an Output ipywidget to capture the output:
from ipywidgets import Output out = Output() def handle_comm_message(message): with out: print(message) and then display the output widget in another cell somewhere Thanks, Jason On Mon, May 8, 2017 at 12:16 PM Dominic Kuang <finaii...@gmail.com> wrote: > Thanks for the reply Jason. I tried switching the cells and randomly > trying different execution orders but to no avail. If I'm not wrong, I > should expect to see something printed in the output cell from the Python > callback being triggered. > > > On Friday, 5 May 2017 15:03:25 UTC-7, Jason Grout wrote: > >> Try switching your cell one and two. >> >> (Sorry, on phone so can't test) >> >> Thanks, >> >> Jason >> >> On Fri, May 5, 2017, 09:54 Dominic Kuang <fina...@gmail.com> wrote: >> > I've uploaded the notebook here for convenience. >>> http://nbviewer.jupyter.org/gist/finaiized/ad8836b64a874518d32c40e7a4a03966 >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Project Jupyter" group. >>> >> To unsubscribe from this group and stop receiving emails from it, send an >>> email to jupyter+u...@googlegroups.com. >>> To post to this group, send email to jup...@googlegroups.com. >> >> >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/jupyter/f2c16cc5-b8bf-4ae4-9084-adab48d1dbce%40googlegroups.com >>> <https://groups.google.com/d/msgid/jupyter/f2c16cc5-b8bf-4ae4-9084-adab48d1dbce%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- You received this message because you are subscribed to the Google Groups "Project Jupyter" group. To unsubscribe from this group and stop receiving emails from it, send an email to jupyter+unsubscr...@googlegroups.com. To post to this group, send email to jupyter@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jupyter/CAPDWZHzX2Qpx601_3BDPSSV-a2C%3D3ZpSv6%3DC0Ef4fL1qf5wASQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.