TFX tutorial 0.13rc1 - jupyter notebook cannot connect to kernel

[JerryKurata]

Environment:
Ubuntu 18.0.4
TFX tutorial
TFX 0.13rc1
Python 3.5
tfx-env virtual environment

When attempting to execute jupyter notebook as part of the tutorial, all notebooks are unable to connect the kernel and therefore cannot be run. The problem is unique to the tfx-env. Jupyter Notebooks outside the environment work fine.

This is a known issues with jupyter and tornado 6.0.x (see jupyterhub/jupyterhub#2451) . To fix the issue I uninstalled tornado while the environment was active and reinstalled with tornado 5.1.1. The commands used were:
pip3 uninstall tornado
pip3 install tornado==5.1.1

After this was done, and jupyter restarted, I was able to execute step3.ipynb, etc, or any other notebook using both the tfx and python3 kernels.

I suggest the environment either:

• install a version of jupyter that works with tornado 6.x is installed.
• or install tornado 5.1.1 until a version of jupyter that works with the tornado 6.x can be added to the environment.

[1025KB]

In the issue you mentioned, it says the bug fixed in notebook 5.7.5, what's your notebook version?

[JerryKurata]

Good catch. Mine is older that 5.7.5. I assumed the Demo installed it's own.

Since it is a frustrating issues, perhaps a check for notebook version 5.7.5 and above could be added to install script.

Going to close this ticket