Javascript errors under jupyter

[damienpolizzi]

I've install in my python repository

./pip --proxy=proxy.utbm.fr:3128 install nbtutor
./jupyter nbextension install --overwrite --py nbtutor --sys-prefix
./jupyter nbextension enable nbtutor --py --sys-prefix

now in a notebook I have in a first cell :
%load_ext nbtutor

and in a second cell :
%%nbtutor blutch = 7 print (blutch)

then I execute the code in the first cell, nothing appends

And now in a second cell, nothing happends but I have this exception (just replacing my login by ...) in my javascript console (firefox):
Exception in event handler for toolbar_rebuild.CellToolbar InternalError ​ columnNumber: 13 ​ fileName: "http://localhost:8080/user/.../static/notebook/js/main.min.js?v=fc2a61bcf6f091823db7fb553a838e7f" ​ lineNumber: 28677 ​ message: "too much recursion" ​ stack: "events.trigger@http://localhost:8080/user/.../static/notebook/js/main.min.js?v=fc2a61bcf6f091823db7fb553a838e7f:28677:13\nCellToolbar.prototype.rebuild@http://localhost:8080/user/.../nbextensions/create_assignment/main.js?v=20181009123455:22:9\nCellToolbar.prototype.rebuild@http://localhost:8080/user/.../nbextensions/create_assignment/main.js?v=20181009123455:23:9\nCellToolbar.prototype.rebuild@http://localhost:8080/user/.../nbextensions/create_assignment/main.js?v=20181009123455:23:9\nCellToolbar.prototype.rebuild@http://localhost:8080/user/.../nbextensions/create_assignment/main.js?v=20181009123455:23:9\nCellToolbar.prototype.rebuild@http://localhost:8080/user/.../nbextensions/create_assignment/main.js?v=20181009123455:23:9\nCellToolbar.prototype.rebuild@http://localhost:8080/user/.../nbextensions/create_assignment/main.js?v=20181009123455:23:9\nCellToolbar.prototype.rebuild@http://localhost:8080/user/..../nbextensions/create_assignment/main.js?v=20181…" ​ __proto__: Object { stack: "", … } Arguments ​0: "toolbar_rebuild.CellToolbar" ​1: Object { selected: false, anchor: false, rendered: true, … } ​callee: Getter & Setter ​length: 2 ​Symbol(Symbol.iterator): function values() ​__proto__: {…} ​​__defineGetter__: function __defineGetter__() ​​__defineSetter__: function __defineSetter__() ​​__lookupGetter__: function __lookupGetter__() ​​__lookupSetter__: function __lookupSetter__() ​​constructor: function Object() ​​hasOwnProperty: function hasOwnProperty() ​​isPrototypeOf: function isPrototypeOf() ​​propertyIsEnumerable: function propertyIsEnumerable() ​​toLocaleString: function toLocaleString() ​​toSource: function toSource() ​​toString: function toString() ​​valueOf: function valueOf()

[damienpolizzi]

Just ading the fact I'm using python 3.7 and this packages

./pip list
alembic 1.0.0
async-generator 1.10
backcall 0.1.0
bleach 2.1.4
certifi 2018.8.24
chardet 3.0.4
decorator 4.3.0
defusedxml 0.5.0
entrypoints 0.2.3
html5lib 1.0.1
idna 2.7
ipykernel 4.9.0
ipython 6.5.0
ipython-genutils 0.2.0
ipywidgets 7.4.2
jedi 0.12.1
jhub-cas-authenticator 0.3.0
Jinja2 2.10
jsonschema 2.6.0
jupyter 1.0.0
jupyter-c-kernel 1.2.2
jupyter-client 5.2.3
jupyter-console 5.2.0
jupyter-contrib-core 0.3.3
jupyter-contrib-nbextensions 0.5.0
jupyter-core 4.4.0
jupyter-highlight-selected-word 0.2.0
jupyter-latex-envs 1.4.4
jupyter-nbextensions-configurator 0.4.0
jupyterhub 0.9.3
jupyterhub-systemdspawner 0.11
lxml 4.2.5
Mako 1.0.7
MarkupSafe 1.0
mistune 0.8.3
nbconvert 5.4.0
nbformat 4.4.0
nbgrader 0.5.4
nbtutor 1.0.4
notebook 5.7.0
pamela 0.3.0
pandocfilters 1.4.2
parso 0.3.1
pexpect 4.6.0
pickleshare 0.7.4
pip 18.1
prometheus-client 0.3.1
prompt-toolkit 1.0.15
ptyprocess 0.6.0
Pygments 2.2.0
python-dateutil 2.7.3
python-editor 1.0.3
python-oauth2 1.1.0
PyYAML 3.13
pyzmq 17.1.2
qtconsole 4.4.1
requests 2.19.1
Send2Trash 1.5.0
setuptools 40.2.0
simplegeneric 0.8.1
six 1.11.0
SQLAlchemy 1.2.12
terminado 0.8.1
testpath 0.3.1
tornado 5.1.1
traitlets 4.3.2
urllib3 1.23
wcwidth 0.1.7
webencodings 0.5.1
wheel 0.31.1
widgetsnbextension 3.4.2

[lgpage]

Likely a duplicate of #30
Should be fixed by #44