%qtconsole seems to be incompatible with %matplotlib notebook

[dereky42]

Since upgrading to python 3.7, figures fail to appear if I use both %qtconsole and %matplotlib notebook. I get a lot of No such comm warnings. Either magic command alone works okay.

I created a fresh install and environment:

conda create -n envname python=3.7 numpy pandas seaborn scikit-learn scikit-image scipy statsmodels notebook qtconsole

I can open the console without breaking the plotting if I start the console from the command line.

jupyter console --existing kernel-xxxx-xxxx-xxxx.json

I've also tried python=3.6 and notebook=5.7.8, same issue.

My versions: MacOSX 10.14.6 Anaconda distribution for Python 3.7 python 3.7.4 notebook 6.0.0 qtconsole 4.5.4

[ccordoba12]

I get a lot of No such comm warnings

Maybe this problem is caused by the introduction of comms to qtconsole. Please downgrade to qtconsole 4.4.4 and try again.

[dereky42]

Hi Carlos,

Downgrading to 4.4.4 seems to have fixed the problem. Thanks for the quick reply!

Should I close this issue, or does it point to something else that needs to be addressed?

Derek

[ccordoba12]

Please don't close it. We need to address this problem.

@impact27, could you take a look at this one?

[impact27]

I get a lot of No such comm warnings

Maybe this problem is caused by the introduction of comms to qtconsole. Please downgrade to qtconsole 4.4.4 and try again.

There are Comms but they are not actually used in qtconsole. The only thing that is done is to create a CommManager that can be used to create comms. I don't think this is related but I don't really know jupyter notebooks.