In recent versions of JupyterLab and Jupyter Notebooks, charts do not appear (empty cell)

[cdolek]

The following code tried with both jupyter lab and jupyter notebooks produces empty looking cell using the new version of jupyter lab and notebooks. I tested the same in an older environment I have, and it works. More information below.

from pyecharts.charts import Line, Bar
    
bar = Bar()
bar.add_xaxis(["shirts", "cardigans", "chiffons", "trousers", "heels", "socks"])
bar.add_yaxis("Merchant A", [5, 20, 36, 10, 75, 90])
bar.render_notebook()

Recent environment that does NOT work (tested both lab and notebook):

➜ jupyter --version
Selected Jupyter core packages...
IPython          : 8.22.2
ipykernel        : 6.29.3
ipywidgets       : 8.1.2
jupyter_client   : 8.6.1
jupyter_core     : 5.7.2
jupyter_server   : 2.13.0
jupyterlab       : 4.1.6
nbclient         : 0.10.0
nbconvert        : 7.16.3
nbformat         : 5.10.4
notebook         : 7.1.2
qtconsole        : 5.5.1
traitlets        : 5.14.2

Python 3.11.0
JupyterLab version: 4.1.6
Jupyter Notebook version: 7.1.2

Older Environment that WORKS (tested notebook):

➜ jupyter --version
Selected Jupyter core packages...
IPython          : 8.14.0
ipykernel        : 6.23.1
ipywidgets       : 8.0.6
jupyter_client   : 8.2.0
jupyter_core     : 5.3.1
jupyter_server   : 2.6.0
jupyterlab       : not installed
nbclient         : 0.8.0
nbconvert        : 7.5.0
nbformat         : 5.9.0
notebook         : 6.5.4
qtconsole        : not installed
traitlets        : 5.9.0

Python 3.9.16

Another older Environment that does NOT work (only tested jupyter lab):

➜ python --version
Python 3.9.16

➜ jupyter --version
Selected Jupyter core packages...
IPython          : 8.15.0
ipykernel        : 6.25.2
ipywidgets       : 8.0.7
jupyter_client   : 8.3.1
jupyter_core     : 5.3.1
jupyter_server   : 2.7.3
jupyterlab       : 4.0.11
nbclient         : 0.8.0
nbconvert        : 7.8.0
nbformat         : 5.9.2
notebook         : not installed
qtconsole        : 5.4.3
traitlets        : 5.9.0

[sunhailin-Leo]

@cdolek

• Check your browser console and find any error notification, thx~

[cdolek]

@sunhailin-Leo These errors (same, twice) show up in console when the cell is executed.

VM540:2 Uncaught ReferenceError: require is not defined
    at <anonymous>:2:5
    at P.attachWidget (jlab_core.4f5a04974a…ab2b69643:1:1791178)
    at P.insertWidget (jlab_core.4f5a04974a…ab2b69643:1:1790642)
    at E._insertOutput (jlab_core.4f5a04974a…ab2b69643:1:1230810)
    at E.onModelChanged (jlab_core.4f5a04974a…ab2b69643:1:1227295)
    at m (jlab_core.4f5a04974a…ab2b69643:1:1763822)
    at Object.l [as emit] (jlab_core.4f5a04974a…ab2b69643:1:1763498)
    at a.emit (jlab_core.4f5a04974a…ab2b69643:1:1761335)
    at d._onListChanged (jlab_core.4f5a04974a…ab2b69643:1:1223034)
    at m (jlab_core.4f5a04974a…ab2b69643:1:1763822)

VM541:2 Uncaught ReferenceError: require is not defined
    at <anonymous>:2:9
    at P.attachWidget (jlab_core.4f5a04974a…ab2b69643:1:1791178)
    at P.insertWidget (jlab_core.4f5a04974a…ab2b69643:1:1790642)
    at E._insertOutput (jlab_core.4f5a04974a…ab2b69643:1:1230810)
    at E.onModelChanged (jlab_core.4f5a04974a…ab2b69643:1:1227295)
    at m (jlab_core.4f5a04974a…ab2b69643:1:1763822)
    at Object.l [as emit] (jlab_core.4f5a04974a…ab2b69643:1:1763498)
    at a.emit (jlab_core.4f5a04974a…ab2b69643:1:1761335)
    at d._onListChanged (jlab_core.4f5a04974a…ab2b69643:1:1223034)
    at m (jlab_core.4f5a04974a…ab2b69643:1:1763822)

Python 3.11.0 and Jupyter Lab

➜ jupyter --version
Selected Jupyter core packages...
IPython          : 8.22.2
ipykernel        : 6.29.3
ipywidgets       : 8.1.2
jupyter_client   : 8.6.1
jupyter_core     : 5.7.2
jupyter_server   : 2.13.0
jupyterlab       : 4.1.4
nbclient         : 0.10.0
nbconvert        : 7.16.2
nbformat         : 5.10.2
notebook         : not installed
qtconsole        : not installed
traitlets        : 5.14.2

[sunhailin-Leo]

@cdolek

• https://pyecharts.org/#/en-us/notebook?id=jupyter-lab
• Try this, load_javascript