Licence CC BY-NC-ND
Embedding pythontutor.com illustrations in Jupyter
Installation
$ pip3 install ipythontutor
Screeshot
As github won't render iframes embedded in a ipynb, here's a screenshot
Basic Usage
# required to load the extension
%load_ext ipythontutorIn its simplest form, the code in the cell is handed over (as python3) to the excellent http://pythontutor.com/
%%ipythontutor
original = reference = [1, 2]
original[0] = 'boom'
print(reference)Setting sizes
%%ipythontutor height=400 width=850
def fact(n):
return 1 if n <= 1 else n * fact(n-1)
original = [fact(3), fact(4)]
reference = original[:]
original[0] = 'boom'
print(reference)Link button to pythontutor (open in a new tab)
%%ipythontutor height=400 width=850 linkButton=true
def fact(n):
return 1 if n <= 1 else n * fact(n-1)
original = [fact(3), fact(4)]
reference = original[:]
original[0] = 'boom'
print(reference)Scaling
If your page is smaller than what pythontutor can reasonably work with, you can specify a scaling ratio.
%%ipythontutor width=600 height=200 ratio=0.7
import copy
original = [1, [2, 3]]
reference = copy.deepcopy(original)
original[1][0] = 'boom'
print(reference)Using python2
%%ipythontutor py=2
print "Hey"
original = [1, 2]
copy = original[:]
original[0] = 'boom'Other settings
The following list shows the settings that can be tweaked on the magic line. See also this page about embedding pythontutor for more details on these settings:
from ipythontutor import Magics
for var, default in Magics.defaults.items():
print("{var:>20} - defaults to - {default:<}".format(**locals()))
Note on proto
The default is to use https to reach pythontutor, as this is exepcted to work in most cases. If that's not working for you, instead of setting proto=http on each magic cell, you can change this globally - like any other default btw - this way:
from ipythontutor import Magics
Magics.defaults['proto'] = 'http'See also
Check out another pure approach, that does not rely on pythontutor, at the nbtutor project.
