Python: Pretty Print in Jupyter Notebook

Question

I am trying to pretty print a dict in Jupyter Notebook.

I am using the following:

import pprint
stuff = ['spam', 'eggs', 'lumberjack', 'knights', 'ni']
stuff.insert(0, stuff[:])
pp = pprint.PrettyPrinter(indent=4)
pp.pprint(stuff)

However upon pressing shift+enter, no [out] cell appear (i.e. I can't see the pretty printed output)

Any idea why this is so/ what should I change in order to see the pretty printed output?

Edit: Actually this is a python 2.7 problem - it works fine in 3.x. Have anyone tried it on python 2.7 and seen it work?

@Ujjwal Oh I see - I am using 2.7... Do you have any idea what would be the coreect syntax in 2.7 ? — jim jarnac, Feb 27 '17 at 01:20
I tested your code on https://try.jupyter.org/ and it did show output. — Bemmu, Feb 27 '17 at 01:24
you could try outputting html, as pretty as you wish: http://stackoverflow.com/questions/25698448/how-to-embed-html-into-ipython-output — user1269942, Feb 27 '17 at 01:27

score 7 · Answer 1 · answered Feb 27 '17 at 01:29

Whatever you develop is correct. The only possible reason could be, Jupyter Notebook is unable to connect to the server. If you see connecting to Kernal/server like the image below in the toolbar, try to refresh the connection or reload the page.

I used the same code and I am able to see the output. check the image below.

score 0 · Answer 2 · answered Mar 02 '21 at 02:51

0

I had this problem with Python 3, in my case solved removing an AD block extension.. somehow it was blocking the AJAX request that set the output..

answered Mar 02 '21 at 02:51

rodfersou

914
6
10

score 0 · Answer 3 · answered Nov 15 '21 at 10:40

The title is generic to more than dict in Jupyter, so i give a generic answer.

When printing, change this

print(longValue, nextValue)

to this (have to try with other values than 30)

space = (30-len(longValue)*" "
print(longValue,space,nextValue)

That will change this

Into this

Python: Pretty Print in Jupyter Notebook

3 Answers3