notebook backend not working in jupyterlab

[michaelaye]

I just installed this on top of my standard env, using conda-forge.

Using standard %matplotlib nbagg as activation command and using standard mpl plotting did not pop up any figure inside a jupyterlab notebook?

Using MPL 2.0 and jupyterlab v0.16 on a Python 3.5 env with conda on OSX 10.11.6 inside Safari 10.0.3

[SylvainCorlay]

All you need to enable this is to import ipympl.

[michaelaye]

Apparently, it must be done at the right time?

/Users/klay6683/miniconda3/envs/stable/lib/python3.5/site-packages/matplotlib/__init__.py:1401: UserWarning:  This call to matplotlib.use() has no effect
because the backend has already been chosen;
matplotlib.use() must be called *before* pylab, matplotlib.pyplot,
or matplotlib.backends is imported for the first time.

  warnings.warn(_use_error_msg)

[michaelaye]

Still doesn't work. I put import ipympl now as the first line of import in my .ipython profile startup, but still no plot is popping up in jupyterlab v0.16.

[SylvainCorlay]

@michaelaye I am sorry I replied from a mobile device earlier and missed that you were using jupyterlab.

We will add support for jupyterlab after we release ipywidgets 6.0.

[thomasaarholt]

Could someone edit the title to "Notebook backend not working"?
It would be nice to get the notebook/nbagg backend working in jupyter lab. I know many users enjoy having an inline interactive backend.

[danielballan]

Confirmed that it is still broken in the latest release, 0.21.0. Will try to look at this with @tacaswell next week.

[ElmWer]

still not working (ipywidgets 6.0.0, matplotlib 2.0.2, jupyter lab: 0.25.2, Python 3.5.3). It would be appreciated to use nbagg in jupyter lab.

[tacaswell]

Hopefully this will get worked on at the jupytcon sprints next month.

[madx]

Hi, any news about this issue?

[blink1073]

This is now working (shown with pinned versions so this will always work):

pip install jupyterlab==0.28.11 ipympl==0.0.8
jupyter labextension install @jupyter-widgets/jupyterlab-manager@^0.28 jupyter-matplotlib@^0.1
jupyter lab

%matplotlib ipympl
import matplotlib.pyplot as plt
plt.plot([0,1,1,2])

[danielballan]

Thanks!